Answer:
D. By placing an embargo on Cuban products
Step-by-step explanation:
After the Cuban Revolution and when Fidel Castro came to power in 1959, relations between USA and Cuba quickly worsened. President Eisenhower officialy recognized the Cuban government, but was greatly disturbed by the fact that there is a Communist country in the Western hemisphere. He imposed were trade restrictions on Cuba. After the Cuban Missile Crisis in 1962, President Kennedy prohibited all Americans from doing business with Cuba. This embargo continues today, and two countries do not have any diplomatic relations even today.