Answer:
The answer is B. African Americans piloted planes, Mexican braceros helped with farm production, and Native Americans were used to send American messages.
Step-by-step explanation:
The army and the Air Force created special units with African-American soldiers or pilots. The Bracero Program brought thousands of Mexicans to US farms to supply labor force for local farmers facing shortages. Native Americans like the Navajos were used to send coded messages in their language that the Japanese couldn´t decipher.