What was the result of the bay of pigs invasion in 1961?

a. fidel castro stepped down as leader of cuba.
b. cuban forces gained ground in puerto rico.
c. the cuban counter revolutionaries successfully gained ground in cuba.
d. the cuban counter revolutionaries failed and kennedy was embarrassed.

D. The Cuban counter revolutionaries failed and Kennedy was embarrassed.

The Bay of Pigs invasion was carried out by Cuban exiles that had been trained by the United States' Central Intelligence Agency (CIA).  Within just  days, the force of exiles was soundly defeated by the Cuban Revolutionary Armed Forces, commanded by Fidel Castro.   In the aftermath of the Bay of Pigs affair, Cuba requested that the USSR, as its communist sponsor, place missiles in Cuba to deter further US-sponsored action against the Castro regime.