The president uses this secret, cover army as desired to intervene in the affairs of foreign nations?

A. CIA
B. NATO
C. FBI
D. CDC

The CIA.

Explanation:

The FBI deals with national affairs, meaning they only work with problems that take place in the United States. NATO, or North Atlantic Treaty Organization, also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 North American and European countries. They are not a secret, cover army. The CDC, or Centers for Disease Control and Prevention, is the leading national public health institute of the United States. They are not an army either. The CIA, however, is a secret, cover army that deals with foreign affairs. They take care of international situations.