What happened in american factories during world war 2?

I'd most likely say A, though they did discriminate since they were fighting this large-scale war, especially against the Japanese. But because this war was going on, they needed as much labor as possible. This was so they could have as much produced as possible, such as weapons and such.

I'm not sure if this is correct, so I'm sorry if it's wrong, but it'd be the one I choose.
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