The civil war and resistence fighters
The National War Labor Board was authorized in March 1918 for the purpose of preventing strikes that would disrupt production in war industries. The first appointments were made the next month. ... After the war, the work of the National War Labor Board was praised by progressives.
hope this helps!!!
Answer:
Not A
Not B
Not C
Definitely D for the reason that they weren't given all their freedoms that the citizens had. A lot of people opposed immigrants and minorities back then, some still do and it's saddening.