The Cuban Missile Crisis begins on October 14, 1962, bringing the United States and the Soviet Union to the brink of nuclear conflict. Photographs taken by a high-altitude U-2 spy plane offered incontrovertible evidence that Soviet-made medium-range missiles in Cuba—capable of carrying nuclear warheads—were now stationed 90 miles off the American coastline that the United States would try again, and set out to get more military assistance from the Soviet Union. During the next year, the number of Soviet advisors in Cuba rose to more than 20,000. Rumors began that Russia was also moving missiles and strategic bombers onto the island your answer is B
