Taken Together, the Neutrality Acts of 1935, 1936, and 1937

Taken together, the Neutrality Acts of 1935, 1936, and 1937 stipulated that when the president proclaimed the existence of a foreign war,

A) Americans could not sail on ships of the warring nations.
B) Americans could not sell weapons to the warring nations.
C) American bankers could not make loans to the warring nations.
D) Americans could not transport weapons to warring nations.
E) all of these.