The correct answer is letter A.
Explanation: Japanese infrastructure and economy were completely destroyed in 1945. Inflation was out of control, and the population often found only staples on the black market. Moreover, the Soviet shadow posed a great risk to the United States for its geopolitical interests in Asia.
From an economic partnership between the United States and Japan, the restructuring of the Japanese nation was possible. Moreover, during the American occupation, the United States did not allow Soviet troops to occupy part of the Japanese territory, which eventually removed any kind of Soviet influence in Japan.