During the Civil Rights era, "Freedom Riders"

Responses
A were used in the Montgomery Bus Boycott.were used in the Montgomery Bus Boycott.
B came to Selma to march for voting rights.came to Selma to march for voting rights.
C were killed on their way to Washington, D.C.were killed on their way to Washington, D.C.
D tested segregation laws in interstate travel.

D tested segregation laws in interstate travel.