Which of the following was not correct about african american soldiers in the civil war?
select the best answer from the choices provided.

a. more african americans were fighting for the north than for the south.

b. fewer african americans were available for labor in the south.

c. when captured by confederate forces, african american soldiers were sold back to the union for ransom.

d. african american soldiers were among the most courageous troops in the heat of battle.