How did James Peck experience discrimination because of his race during the war?

A.
He tried to join the Naval Air Force but was turned away.
B.
He tried to join the Abraham Lincoln Brigade but was denied entry.
C.
He was denied his pilot’s license after completing aviation school.
D.
He wrote a book regarding social injustices, but it was never published.

A. He tried to join the Naval Air Force but was turned away.