What movement sought to end racial discrimination?

The Civil Rights Movement is the correct answer because it was specifically focused on ending racial discrimination and achieving equal rights for African Americans and other marginalized groups in the United States. This movement gained momentum in the mid-20th century and included significant events such as the Montgomery Bus Boycott, the March on Washington, and the Civil Rights Act of 1964. Leaders like Martin Luther King Jr., Rosa Parks, and Malcolm X played crucial roles in advocating for an end to segregation and discrimination based on race.

The other movements listed, while significant in their own rights, aimed to address different issues. The Women's Suffrage Movement focused on securing voting rights for women. The Labor Movement aimed at improving working conditions and advocating for workers' rights. The Environmental Movement addresses issues related to conservation and ecological protection. Each of these movements had distinct goals and contexts, separate from the struggle against racial discrimination that defined the Civil Rights Movement.