pls halp
What action did the United States take that angered Japan, set the stage for the surprise attack on Pearl Harbor in 1941, and caused the United States to enter the war?
a.
The United States sold arms to Germany.
b.
The United States established an embargo on oil and scrap metal going to Japan.
c.
The United States refused to meet with Japanese and German leaders.
d.
The United States insisted on taking sides in the war.