What did Roosevelt mean when he said the United States must be an "arsenal of democracy”?

A. The United States would declare war on Japan and enter the war.
B. The United States should send troops to help defend Europe.
C. The United States must join the war and assist the Allies.
D. The United States could provide supplies to the Allies without joining the war
PLEASE HURRY THANKS

Why is the federal reserve managed under the oversight of the federal government? the fed is responsible for printing and coining money. the fed is responsible for collecting income taxes. the fed is responsible for the government’s money. the fed is responsible for paying off government debt.(the first option isn't correct i tried that one)edit: the answer is the fed is responsible for the government’s money.