The correct answer to this open question is the following.
Unfortunately, you forgot to attach the options to this open question.
However, trying to help you, we can answer the following.
During the Cold War, a defector was someone who fled to the West from a Communist country.
A defector was an individual that emigrated from the Soviet Union, Bulgaria, Czechoslovakia, or any Eastern European country under the control of the USSR, to western Europe.
During the Cold War years, the United States and the Soviet Union competed almost in everything, basically in the arms race, the space race, and the spread or containment of Communism, respectively. These caused too many problems and tension not only between the two but to all the countries. Let's just remember that during the Cuban Missiles Crisis of October 1962, the world was on the brink of another major war.
