What was the main way that business leaders the war effort during world war 2?

c

Explanation:

They volunteered to help the government plan production goals

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

your mothers brothers brother in law would be your father.