Answer:
A. a profit
Step-by-step explanation:
While many businesses had to be
converted for the war effort during
WWII, each still managed to make A PROFIT.
This is because many American firms were working well or again, compared to Great Depression period before the war.
During this period, many American companies are into the production of defense-related commodities such as aerospace and electronics or atomic energy. Americans were able to supply European countries during this period, in the subsequent years after, thereby making more sales and more profits.