Answer:
a.They were forced to relocate to assembly centers.
Step-by-step explanation:
The term 'internment' means the confined as a prisoner mainly for political reasons or for military reasons.
During World War II, U.S. President, Franklin Roosevelt issued an order that Japanese internment camps is to be established. This order is known as Executive order 9066.
It was the policy of the United States Government that people of Japanese descent in the United States were forced to interred in the assembly camps.
About 120000 people of Japanese descent were forced to relocate in these isolated and concentration camps.
Thus the answer is a.They were forced to relocate to assembly centers.