Why were Tennessee's factories converted during World War II?

Question

a. Factories were converted into airports to help troops deploy during the war.
b. Factories were converted into sites for political campaigns so that new politicians could be elected during the war.
c. Factories were converted to house people who could not afford to live in their own homes during World War II.
d. Factories were converted to create things that helped the war effort such as tires for military vehicles.

Answer 1

d. Factories were converted to create things that helped the war effort such as tires for military vehicles.