Need help please what do the actions described in the box indicate about u. s foreign policy

-U. S. President Johnson stationed warships off the Dominican coast and increased the number of American troops ashore.

-The U. S. CIA helped engineer a truck drivers' strike that helped paralyzed Chile.

-The U. S. CIA urged the Chilean military to take action

a. that the major goal was to fight communism

b. that protectionism was part of the mission

c. that the CIA could be called on to maintain free elections

d. that transportation and the military were of equal importance