Answer :
A. He believed that Kennedy was a weak president and decided to place Soviet missiles in Cuba.
The Bay of Pigs invasion was unsuccessful and strengthened Castro's rule, so it strengthened Cuba's relationship with the Soviet Union. It would have made Kennedy look more like a failure and the Cuban Missile crisis did occur one year after the Bay of Pigs invasion. This suggests that A is the correct answer, as it was an embarrassment for Kennedy and Khrushchev did decide to place missiles on Cuba shortly after.
The Bay of Pigs invasion was unsuccessful and strengthened Castro's rule, so it strengthened Cuba's relationship with the Soviet Union. It would have made Kennedy look more like a failure and the Cuban Missile crisis did occur one year after the Bay of Pigs invasion. This suggests that A is the correct answer, as it was an embarrassment for Kennedy and Khrushchev did decide to place missiles on Cuba shortly after.