Why were guidelines like these necessary during the civil rights movement? White people had not used bus transportation before this time.
Racial tensions were high due to the end of the Montgomery Bus Boycott.
Bus drivers had not been trained to diffuse tense situations.
African Americans had instigated several violent encounters during the boycott.

I put B

Explanation:

B

Explanation:

They didn't want to have more violent incidents so being courteous was recommended.

branches of government. to ensure a separation of powers, the u.s. federal government is made up of three branches: legislative, executive and judicial. the legislative branch is made up of the house and senate, known collectively as the congress.

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !