Question

1
multiple choice 2 points
\the people of the united states are drawn from many nations, and chiefly from the nations now at war. it is natural and inevitable that there should be utmost variety of sympathy and desire among them with regard to the issues and circumstances of the conflict. some will wish one nation, others another, to succeed in the momentous struggle... the united states must be neutral in fact as well as in name during these days that are to try mens souls\.
president woodrow wilson, 1914
which development caused the united states to change the foreign policy supported by president wilson in the quotation above? (ush15a)
russia withdrew its military forces from the conflict.
german submarines attacked u.s. merchant ships.
the central powers began to use poison gas on the battlefield.
hitlers use of mass production to kill off the jewish population

Explanation:

The quotation shows President Wilson advocating for U.S. neutrality. However, German submarine attacks on U.S. merchant ships (such as the sinking of the Lusitania) were a major factor that led the U.S. to abandon neutrality and enter World War I. Russia withdrawing from the conflict (due to the Russian Revolution) happened later and wasn't the main cause of the U.S. policy change. The Central Powers' use of poison gas was a horror of the war but not a direct trigger for U.S. entry. Hitler's actions were during World War II, which is a different time period than the one referred to in the quotation (1914, World War I).

Answer:

B. German submarines attacked U.S. merchant ships.