In 1947, the British ended their colonial presence with the partition of India. As a result, some 17 million individuals were displaced.

1. forced political migration
2. forced economic migration
3. forced environmental migration
4. voluntary economic migration

1. forced political migration: The partition of India resulted in the division of the country into two separate nations - India and Pakistan. This led to large-scale forced migrations based on religious and political affiliations. Hindus and Sikhs fled from newly created Pakistan to India, while Muslims migrated from India to Pakistan.

2. forced economic migration: The partition also led to forced economic migration as people were displaced from their homes and had to flee to find new livelihoods. Many individuals, especially those belonging to minority communities, were uprooted from their ancestral lands and forced to start afresh in unfamiliar territories.

3. forced environmental migration: While the primary reasons for migration during the partition of India were political and economic, there were also instances of forced environmental migration. The movement of people from one place to another due to communal violence and insecurity can also be considered a form of forced environmental migration in this context.

4. voluntary economic migration: Alongside the forced migrations, there were also voluntary economic migrations during this period. Some individuals saw opportunities for better economic prospects in the newly partitioned countries and voluntarily migrated to new regions in search of employment and business opportunities. While they were not forced to migrate, their decision was largely driven by economic motivations.

The partition of India in 1947 resulted in the displacement of approximately 17 million individuals. This displacement can be categorized into different types of migration, including forced political migration, forced economic migration, forced environmental migration, and voluntary economic migration.

1. Forced political migration: This refers to the movement of people due to political factors such as the division of a country or political unrest. In the case of the partition of India, many people were forced to flee their homes and migrate to the newly created countries of India and Pakistan due to religious and ethnic tensions between Hindus and Muslims.

2. Forced economic migration: This type of migration occurs when individuals are compelled to move due to economic reasons, such as poverty, lack of employment opportunities, or economic instability. The partition of India led to significant economic disruption, as many people found themselves in precarious situations and had to migrate to find employment and better economic prospects.

3. Forced environmental migration: This refers to migration caused by environmental factors, such as natural disasters, climate change, or environmental degradation. Though not primarily an environmental migration, the partition of India also resulted in displacement due to the communal violence and chaos that ensued, which can be seen as a form of forced environmental migration.

4. Voluntary economic migration: Not all migration in the aftermath of the partition of India was forced. Some individuals chose to migrate voluntarily in search of better economic opportunities, improved living conditions, or to reunite with family members in other regions. These individuals considered migration as a means to improve their economic and social circumstances.

It is important to note that the partition of India led to a complex and multifaceted migration experience, with different individuals and communities experiencing a combination of these migration types, depending on their circumstances and choices.

The partition of India in 1947 did result in forced migration, but it primarily falls under the category of forced political migration. This event led to the creation of two separate countries, India and Pakistan, and the subsequent division of people along religious lines. Hindus and Sikhs living in what became Pakistan and Muslims living in what became India were forced to leave their homes and migrate to the new countries based on their religious identity.

To understand the other options, let's briefly define them:

- Forced economic migration: This refers to a situation where people are compelled to migrate due to economic factors such as poverty, lack of economic opportunities, or extreme inequalities.
- Forced environmental migration: This occurs when people are forced to move due to environmental factors, such as natural disasters, climate change, or environmental degradation.
- Voluntary economic migration: This describes a situation where individuals choose to migrate to seek better economic opportunities, education, or a higher standard of living.

In the context of the partition of India in 1947, the primary cause of displacement was political rather than economic or environmental. The large-scale migration that occurred was a consequence of communal tensions and conflict between religious groups.

To determine the options for voluntary economic migration and forced environmental migration, one would need to explore different historical periods or events where such migrations took place.