Which of the following is true about the civil rights era in the 1950s and 1960s?
a. The Supreme Court became more active in its rulings regarding civil rights.
b. Congress was active in making laws to support civil rights.
c. President Johnson was strongly against the civil rights movement in order to get support from Southern states.
d. African Americans used violence as their primary tactic to achieve civil rights.

a. The Supreme Court became more active in its rulings regarding civil rights

Explanation:

The civil rights movement was a struggle for social justice that took place mainly during the 1950s and 1960s for blacks to gain equal rights under the law in the United States. ... By the mid-20th century, African Americans had had more than enough of prejudice and violence against them.

1956. In January and February, whites angry about the Montgomery Bus Boycott bomb four African American churches and the homes of civil rights leaders King, Ralph Abernathy, and E.D. 13, the Supreme Court upholds an Alabama district court ruling in favor of the Montgomery bus boycotters

b) they want the land taken away from the wealthy landowners and given to peasants.

(1)representation based on state population (2)all states have equal representation apex