What Impact Did the Departure of Millions of Men for Military

What impact did the departure of millions of men for military service have on the labor market in the United States?

A) While many jobs became available,few Americans could take advantage of them because of limitations on travel due to rationing.
B) Many women entered the workforce for the first time,and some found better paying jobs in fields previously closed to women.
C) Many poor white southerners tried to get jobs in shipyards but were not able to do so,due to a lack of industrial skills.
D) Rather than allowing women to do "men's" jobs,many African Americans previously denied work were hired by corporations.