Which of the following correctly explains how the freedom of speech contributed to the success of the civil rights movement?

A. The right to freedom of speech allowed the opponents of the civil rights movement to physically attack the participants in the movement.
B. The right to freedom of speech allowed participants to avoid punishment when they broke laws they believed to be unjust.
C. The right to freedom of speech allowed those participating in the civil rights movement to challenge the ideas that supported racial discrimination.
D. The right to freedom of speech prevented law enforcement from physically harming the participants in the civil rights movement.

C. The right to freedom of speech allowed those participating in the civil rights movement to challenge the ideas that supported racial discrimination.

C. The right to freedom of speech allowed those participating in the civil rights movement to challenge the ideas that supported racial discrimination.

The correct answer is C. The right to freedom of speech allowed those participating in the civil rights movement to challenge the ideas that supported racial discrimination.

Explanation:
The freedom of speech played a crucial role in the success of the civil rights movement. It allowed individuals involved in the movement to express their opposition to racial discrimination and challenge the ideas and beliefs that supported it. By having the freedom to speak out, civil rights activists were able to engage in public discourse, educate others about the inequality and injustice faced by African Americans, and advocate for social and legal changes. This helped to generate support and awareness for the cause, as well as put pressure on lawmakers, government officials, and society as a whole to address and rectify racial inequalities. The freedom of speech protected their right to express their views and opinions without fear of censorship or retribution, enabling the civil rights movement to gain momentum and eventually lead to significant legislative and social changes.