Answer:
The Correct Answer is D
He was unhappy that MacArthur moved north of the 38th parallel.
Step-by-step explanation:
- Because of MacArthur's decision to move north of the 38th parallel, he made a contention with North Korea.
- Truman was particularly worried that MacArthur's decision could make China and Russia come together and attack the United States.
- MacArthur had criticized Truman’s approach to the war and too publicly.
- MacArthur had refused Truman's interest to invade China and refused to lead his troops on such a dangerous mission.