Question

how did president roosevelt indicate his commitment to being prepared for war?
signed the selective service act requiring young men to serve in the military
changed the name of the department of defense to the department of war
called for large contracts for corporations that built tanks, planes, and jeeps
detailed preparations in his inaugural and state of the union addresses

Explanation:

• Option 1: The Selective Service Act was signed during World War I, not by Roosevelt in the context of his war preparation (he was preparing for WWII - related efforts, and the Selective Training and Service Act of 1940 was different in timing and context here).
• Option 2: The Department of Defense was not named that during Roosevelt's time (it was the Department of War and later reorganized, but the name change to Department of Defense was after WWII).
• Option 3: Roosevelt called for large - scale contracts with corporations to produce war materials like tanks, planes, and jeeps to build up the military's equipment and capabilities, which was a key way to show commitment to war preparation.
• Option 4: While Roosevelt gave addresses, the specific action of contracting with corporations for war material production was a more direct and impactful way to show commitment to war preparation compared to just detailing in addresses.

Answer:

C. called for large contracts for corporations that built tanks, planes, and jeeps