Answer:Sinking of American merchant ships
Explanation:In early 1917 Berlin forced the issue. Its declared decision on 31 January 1917 to target neutral shipping in a designated war-zone became the immediate cause of the entry of the United States into the war.
<span>the best answer would be that it opposed increased immigration and supported increased requirements for citizenship</span>
Answer: A) True
Explanation: When we say an official has been impeached, that means the official has been accused of crimes or serious misconduct and must stand trial.
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