What was the prevailing economic challenge the United States faced at the start of World War II?

attracting a labor force

obtaining scarce resources

filling military supply orders

deciding how to allocate contracts

deciding which goods were not essential

Verified Answer :

The prevailing economic challenges the United States faced at the start of World War II was "filling military supply orders," since the US was still figuring out how to align private industry with the war effort. 

Answer:

they were filling military supply orders

Explanation: