Which statement explains why the Thirteenth, Fourteenth, and Fifteenth Amendments were added to the Constitution?

A. the Union winning the Civil War, ultimately abolishing slavery within the whole country.
B. the Confederate South winning the Civil War
C. a rebellion led by former enslaved people
D. the Revolutionary War, ultimately freeing colonists from the British Monarchy

A. the Union winning the Civil War, ultimately abolishing slavery within the whole country.

The correct answer is A. The Union winning the Civil War, ultimately abolishing slavery within the whole country.

To understand why the Thirteenth, Fourteenth, and Fifteenth Amendments were added to the Constitution, we need to examine the historical context and events that took place during the Civil War in the United States.

During the Civil War, which took place from 1861 to 1865, the Union (Northern states) fought against the Confederate South (Southern states). One of the major issues that led to the war was the disagreement over slavery. The Southern states relied heavily on slavery as an economic and social institution, while the Northern states were increasingly opposed to it.

When the Union won the Civil War, it resulted in the abolition of slavery. The Thirteenth Amendment was ratified in 1865 and formally abolished slavery throughout the entire United States. This was a significant victory for the abolitionist movement and a major step towards equality and freedom for African Americans.

The Fourteenth Amendment, ratified in 1868, granted citizenship and equal protection under the law to all persons born or naturalized in the United States, including former slaves. This amendment aimed to secure the civil rights of African Americans and ensure that they were not denied the rights and privileges afforded to other citizens.

The Fifteenth Amendment, ratified in 1870, prohibited the denial of the right to vote based on race, color, or previous condition of servitude. This was a crucial step towards ensuring the political participation and representation of African Americans.

So, in summary, the Thirteenth, Fourteenth, and Fifteenth Amendments were added to the Constitution in response to the Union's victory in the Civil War, which led to the abolition of slavery and aimed to secure the rights and freedoms of African Americans.

The correct answer is A. The Thirteenth, Fourteenth, and Fifteenth Amendments were added to the Constitution following the Union's victory in the Civil War, which ultimately abolished slavery within the whole country.