What action did the african american citizens of montgomery alabama take to protest discrimination on city buses?

a) boycott

b) violent attacks

c) petition drive

d) work slow down

The African American's did a A) Boycott. This was a very famous event called the Montgomery Bus Boycott and was used to put the bus companies out of business for requiring African Americans to sit in the back of the bus.

This is referring to the Montgomery Bus Boycott where Rosa Parks refused to give her seat to a white man. The answer is A.