The options of the questions are:
A. He enumerated the heroic efforts of American citizens in past wars. B. He discusses his military leaders abilities and past victories. C. He says that the United States can fight alone and win the war with its military strength. D. He shows his confidence in American support citizens ability to contribute to the war effort.
The correct answer is D) He shows his confidence in American support citizens ability to contribute to the war effort.
<em>In his fireside chat after the attack in Pearl Harbor, FDR increased Americans confidence in the ability of the U.S. to win the war against the Axis powers by showing his confidence in American support citizens ability to contribute to the war effort.
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In his speech delivered in December 1941, President Roosevelt addressed the American people. The main message of the chat was the necesary support of the U.S. citizens to help the war effort during the next difficult months. President Roosevelt made clear that he is asking the support of the U.S. people to contribute with the production of products for the war in an emotive way in order to have a favorable response from the people.