War industry was a major endeavor, massive both in terms of scale and costs involved. New technologies, munitions, weapons had to made and designed. This meant there was a need for massive number of new workers and subsequently a need for new houses where the workers would live. That was the difficulty that the industry had to face.
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Hey there!
At the Wannsee conference in 1942 the Nazis made plans to find a final solution to the "Jew problem". In their opinion, there were too many jews in their empire and they were looking for a way of getting rid of them (It sounds - and is - cruel, but unfortunately that's the truth). They found their 'solution' in the form of concentration and death camps.
The rules discussed were a follow-up of the Neurenberger laws (1935) which had as a purpose to isolate the Jews.
~ I hope this answer helps you!
Even without knowing your answer choices I would say that the U.S economy had fewer jobs and lower wages. So that gave Americans fewer resources .