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