The three ways that the author of the "Joint Address to Congress," President F.D. Roosevelt supports his argument are as follows:
A. The author distinguishes between the German people and the German government.
D. The author acknowledges the cost of war.
E. The author claims that there are several ways of defeating Germany.
The author does not:
B. The author connects the cause to universal values.
C. The author lists the benefits of fighting a war.
Thus, the three ways that the author of the "Joint Address to Congress" supports his argument are A, D, and E.
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