President reagan combated communism in the caribbean in 1983 by invading which island country?
a. cuba
c. granada
b. hispaniola
d. haiti

The answer is letter c. Granada.  It happened in 1983 when the U.S. launched an invasion of the Island located north of Valenzuela where a coup ousted the leader of the island who was killed and a revolutionary government was established.  The U.S. was victorious and this led to an  interim government followed by democratic elections.  

C.) Andrew Johnson became president