Slavery was why the north and south were fighting, so it would be slavery
Try answer A that’s what I think it is
Answer:
when the Americans found out that Germany had contraction camps.
Explanation:
I think this is correct.
Although you did not provide the scenarios, the answer would have to deal with African-americans not being granted citizenship even though they were freed, naturalized, or born within the US. Any African-American that would be denied would be a breach of the 14th amendment.