Which of the following statements are true about the crisis in Cuba in 1962? Choose the two correct answers.

a: After 13 tense days, Khrushchev agreed to remove Soviet missiles from Cuba.

b: JFK agreed with his advisers who wanted to bomb Cuba.

c: JFK agreed to place U. S. missiles in Turkey.

d: The United States, Russia, and Britain signed a treaty to test nuclear arms together.

e: A U. S. spy plane photographed Soviet missiles in Cuba.

f: Cuba wanted the U. S. blockade that prevented Russia from sending more missiles to their island.