Which of the Following Did Roosevelt Do in 1940

Which of the following did Roosevelt do in 1940?

A) He called for a military draft and an increase in the U.S.forces so that if war came, America would be prepared.
B) He met with Hitler and personally tried to negotiate a cease-fire with Germany before the war got too bloody.
C) He prevented atomic weapons research in the United States because of limited resources and the belief that Germans had not tried to make atomic bombs.
D) He declared war on Poland, invading an important demilitarized zone there and angering Hitler.
E) He convinced Stalin to switch sides and join the Allies by promising him part of northern and eastern Europe at the end of the war.