Answer:
the answer is imperialism
The sinking of the Lusitania in 1915 had a very negative effect on the American public opinion of Germany, since it was the Germans who sank the American ship for seemingly no reason.
I believe it was slaves. From what I know, slaves were widespread all over Africa. I hope I helped.
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Answer:
C. Battle of Antietam
Explanation:
The Battle of Antietam was the single bloodiest day of the war, with both sides suffering enormous losses. Lee's army barely withstood the Union assaults, then retreated to Virginia the next day.
