What was the primary purpose of covert operations by the U.S. in Central America during the Cold War? Select one: a. Destabilize countries perceived as communist threats. b. Help elect socialist leaders who would be weaker on trade restrictions. c. Create a monopoly on the fruit industry in Central America. d. Cause harm to the oil industry in Central America in order to increase demand for the United States' oil. e. Stop or at least slow down the illegal drug trade in the region