Civil rights activists challenged southern voting laws because they conflicted with the fifteenth amendment. the civil rights act of 1964. the emancipation proclamation. the declaration of independence.

The correct answer is:  the Fifteenth Amendment.   The main purpose of the fifteenth amendment was to grant the right to vote of the former slaves, for it states are prohibited from using the race of a citizen, the color or the previous state as a slave to restrict their vote. However, in some states, black voters and white republicans continued to be intimidated.  

imma say false because i dont know anything about this.

i dont have that book