The correct answer is B) the U.S. had already put some in Turkey.
Premier Khrushchev decided to put ICBMs in Cuba because had already put some in Turkey.
The Soviet Union decided to place the missiles just 90 miles South Florida, in the island of Cuba. John F. Kennedy felt very threatened by the Russian’s decision. But for the Soviet Union was a way to level the situation in that the United States had deployed missiles first in Turkey. Khrushchev also considered that deploying missiles in Cuba would defer the United States invasions to Cuba like the one occurred in 1961, named the Bay of Pigs invasion. The Cuban missiles crisis created a lot of tensions between the United States and the Soviet Union. The world was on the brink of another World War in those moments.