Answer:
C. He wanted to justify his recommendations for expanding the Korean War.
Step-by-step explanation:
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Congress invited MacArthur to address a joint session, an honor never before (or since) extended to a general who had been relieved of command. MacArthur, who had been away from the United States for fourteen years, used his address to defend his preferred strategy for Korea at length, insisting that “in war, there is no substitute for victory.”