I think the answer is detente (B). This is because he was able to ease various political situations in the US by negotiating with the people involved in the situations. He was able to ease economic recession through Keynesian practices. He was also able to help diffuse the issue during the Cuban Missile Crisis by negotiating with the Soviet Union
Answer U.S. diplomatic representation in Cuba is handled by the United States Embassy in Havana, and there is a similar Cuban Embassy in Washington, D.C.
