C. Establishing sea routes to the Indies to make profits from trade.
C is the answer
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Answer:
Even if Germany didn't declare war on the USA in 1941, the US would have been forced to declare war later on anyway. ... Dozens of merchant ships were sunk off the East Coast of the United States between 1941 and 1945. Sooner or later, these sinking would have forced FDR's hand to declare war on Germany.
Explanation:
