What Was a Common Occupation for Many Black Soldiers in Europe

What was a common occupation for many black soldiers in Europe?

A) They were often a part of the transportation corps, delivering supplies to soldiers at the front lines.
B) They were only responsible for digging trenches and setting up temporary quarters for white soldiers.
C) They were rarely put in any position of danger during the war.
D) No African Americans were sent to Europe, since they were thought to be cowards and lazy.