A free nation has the right to expect full cooperation from all groups. A free nation has the right to look to the leaders of business, labor, and agriculture to stimulate effort within their own groups.
—Franklin D. Roosevelt, "Four Freedoms Speech: Annual Message to Congress on the State of the Union," January 6, 1941
Which sentence best states the main idea of this passage?
A. The threat of war will soon make its way to the United States, and Americans must make sacrifices.
B. The United States vows to send money and troops to those countries that are being oppressed.