Respuesta :
A) Rosa Parks actions sparked the Montgomery bus boycott. She was forced to move to the back of the bus to give her seat up for a white woman, but refused to. During this time period in the South, African Americans were supposed to sit in the back of the bus, and could only sit in the front of the bus if no Whites were on the bus at the same time.
It is A cause Rosa Parks sparked the event. She was ordered to sit in the back of the bus, but she refused and sat in the front. She was arrested and after that African-Americans refused to take buses. Hoped I helped ;)