Which of the following questions about the cuban missile crisis is true?

a. khrushchev agreed to allow american forces to occupy cuba and remove castro from power.

b. kennedy and khrushchev secretly agreed to divide the island of cuba between the u. s and the soviet union.

c. the soviets agreed to remove missiles from cuba and the u. s agreed to remove the missiles from turkey.

d. the u. s. government backed down and allowed the soviets to place missiles in cuba.