Answer:
B. USA
Step-by-step explanation:
The term Cuban exile represents the mass movement of Cubans from Cuba after the Cuban Revolution of 1959. Most of the Cubans flee to the USA and the US government, also gave some special legal status to many refugees.
The USA also became a very strong ally of Cuba as it supported Cuba in its hard times and helped refugees to settle down.
Hence, the correct answer is "B. USA".