During the Summer of 1941, the United States Attempted to Restrain

During the summer of 1941, the United States attempted to restrain Japanese expansion by

A) restricting oil exports to Japan and freezing Japanese assets in the United States.
B) ordering the strategic bombing of Japanese military sites.
C) sending many troops to China and stationing a large naval force in the South Pacific.
D) establishing a protectorate over China and positioning many American leaders there.
E) declaring a naval blockade of Japan and building airfields in Indochina.