The correct answer is B) The fight for fair treatment for all Americans regardless of race.
The Civil Rights movement took place in the 1950's and 1960's within the US. The goal of this social movement was to help African American citizens to be treated equally in comparison to white citizens. This movement was a result of several different factors including:
A) Increased violence against African-American citizens (especially in the Southern states).
B) The rights of African-Americans being restricted- For example, different poll taxes and tests prevented African-American citizens from voting.
C) The ruling in the Supreme Court case Plessy vs. Ferguson, which allowed for the creation of "separate but equal" public facilities for black and white citizens.