What event/events finally pushed the US into joining WW2?

a. the speech by President roosevelt

b. the attack on pearl harbor by japan

c. the sinking of many american ships in the pacific by germany

d. all the above contributed equally

e. a and c only

What event/events finally pushed the US into joining WW2?met opera

b

but all the acts against us could technically have contributed, but we didn't decide to do anything until Pearl Harbor was bombed.

What event/events finally pushed the US into joining WW2?movie theatre opera theater

b
b
b, plus the soon after declaration of war against us by Germany.
b.
b.
B.
B
B