The correct answer is A. Khrushchev developed radical new policies.
Step-by-step explanation
After the Caribbean missile crisis involving the United States in the head of President John F. Kennedy and the Soviet Union in the head of Nikita Khrushchev, which caused an international uproar over the presence of nuclear missiles on the island of Cuba pointing to the US territory which could cause an imminent nuclear war. The Soviet president decided to propose political solutions to the crisis experienced during the early sixties, for this reason, he made radical political decisions such as the withdrawal of his nuclear missiles located on the island of Cuba on the condition that the United States abandoned the idea of invade the island and withdraw its missiles from Turkey. So, the correct answer is A. Khrushchev developed radical new policies.