One of the Significant Contributions of Native Americans to the War

One of the significant contributions of Native Americans to the war effort was

A) as industrial factory workers producing war materials.
B) as code talkers who transmitted war messages into their native languages.
C) as arms experts who consulted with generals and military planners.
D) as farmers who helped expand crop output for soldiers on the front.
E) as espionage agents based in California spying on Japanese Americans.