D Both A and B should be the answer
The answer is B. Martin Luther King Jr., the leader of the Civil Rights Movement, wished to end policies that encourage racial discrimination. He wanted both white people and black people to get along and to be equal.
I believe it is the Doctrine of Nullification
Answer:
In short:
The Confederate Army’s retreat moved southwest along the Richmond & Danville Railroad. Lee desperately sought a train loaded with supplies for his troops but encountered none.
Grant, realizing that Lee's army was running out of options, sent a letter to Lee on April 7 requesting the Confederate general's surrender.
Explanation:
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It’s B. Reason-What other sources from that time are important from a historian POV to be able to know what other people said when whatever was going on. Hope this helps, Please Mark as Brainliest