A) The United States had passed laws to end discrimination against immigrants. B) The discrimination that previous immigrants faced was less severe than first reported.

C) Discrimination against immigrants did not occur among the railroad workers.

D) The situation in China was so bleak that immigrants figured America was their only hope.

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.