According to the passage, which of the following statements about the Tuskegee Airmen is T

According to the passage, which of the following statements about the Tuskegee Airmen is TRUE？

A．In World War II,they never lost a bomber to enemy fire.

B．They were the first group of black soldiers ever trained by the ground troops.

C．They were not subjected to racial discrimination in the army.

D．They were already soldiers in the ground troops before their training at Tuskegee began.

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