How did Rosa Park's refusal to stand up contribute to the civil rights movement?

A: Her refusal to stand sparked a boycott that lead to the end of the segregation. Therefore, her courageous action marked the start of the civil rights movement.

I only see one answer choice

It is my answer to the question. However, I don't know whether it is correct or not.

The verb should be "led" not "lead" since you are phrasing it in past tense.

The civil rights movement started before this, and her act was a planned one. It was still courageous, but it was all carefully planned, as was the year-long bus boycott that followed.

http://en.wikipedia.org/wiki/Timeline_of_the_African-American_Civil_Rights_Movement#1925.E2.80.931949

Correction: Her refusal to stand sparked a boycott that led to the end of the segregation on the Montgomery bus system. Therefore, her courageous action marked the start of the civil rights movement.

It was a VERY important milestone in the civil rights movement, but it was not the start of it.

What would you consider to be the start of the Civil Rights Movement? I'm not badgering, I'm just curious.

Rosa Parks' refusal to stand up on that fateful day in Montgomery, Alabama on December 1, 1955, is often seen as a major catalyst for the civil rights movement. Her act of civil disobedience, by refusing to give up her bus seat to a white passenger, sparked a series of events that would ultimately lead to the end of racial segregation in America.

To understand how her refusal contributed to the civil rights movement, it is important to examine the subsequent events that unfolded after her arrest. After Rosa Parks was arrested, a young minister named Martin Luther King Jr. became involved in organizing a boycott of the Montgomery bus system. The Montgomery Bus Boycott, which lasted for 381 days, was a crucial turning point in the fight against segregation.

During the boycott, African Americans in Montgomery, led by community leaders including Dr. King, walked, car-pooled, and organized alternative means of transportation to protest the unjust treatment they had experienced on the buses. Their determination and resilience caught the attention of the nation and inspired similar acts of resistance in other cities.

The Montgomery Bus Boycott put pressure on the city's authorities and the bus company financially, as they relied heavily on the revenue from African American ridership. The boycott also highlighted the deep-rooted and widespread discontent with segregation and discrimination in the United States, leading to increased awareness and support for the civil rights movement.

Ultimately, the Supreme Court ruled in 1956 that racial segregation on public buses was unconstitutional, and the Montgomery Bus Boycott played a significant role in this decision. This victory marked a major step forward in the struggle for civil rights and energized the movement as a whole.

So, in summary, Rosa Parks' refusal to stand up on the bus served as a catalyst for the Montgomery Bus Boycott and galvanized the civil rights movement. Her act of defiance and the subsequent boycott brought national attention to the injustices of segregation and set the stage for further progress in the fight for equality.