Even though they were allowed to serve as soldiers, what types of discrimination did african americans face in the union army? select all that apply.

(a) they were not allowed to serve as officers.
(b) they were not eligible to win high awards, such as the congressional medal of honor.
(c) they were not paid the same as white soldiers until after the war ended.
(d) they were not allowed to serve in units with white soldiers.

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