What was the significance of the U.S. Supreme Court's decision in Korematsu v. United States?
A.
It upheld the federal government's policy of excluding Japanese-American soldiers from combat.
B.
It upheld the federal government's policy of confining Japanese-Americans in internment camps.
C.
It upheld federal government quotas on immigration of Japanese to the United States.
D.
It upheld federal government quotas on imports of Japanese products to the United States.