U.S.<span> declared </span>war<span> on April 6th, 1917, the </span>U.S.<span> had desperately tried to stay neutral, but ties to Britain, propaganda, the sinking of ships by German U-boats, and a German attempt in the Zimmermann Note to </span>get<span> Mexico to declare </span>war<span> on the </span>U.S.<span> pushed the </span>U.S.<span> to </span>get involved<span>.</span>
Answer: B
Explanation: Cause I said it was
C the increased outside contact due to the crusades
B wealth for him and his family