The CIA participated in the Cold War by
a. helping design efficient weapons systems.
b. carrying out secret operations in other countries.
c. spying on the Soviet Union.
d. helping the president determine foreign policy.

Respuesta :

The answer:- 
B. carrying out secret operations in other countries.

Because:-  The CIA is for the national security information in the world. They use human intelligence. 

CARRYING OUT SECRETS TO OTHER COUNTRIES!!!