Final answer:
Labor and business groups helped the US boost its World War II production.
Step-by-step explanation:
The two groups that helped the US boost its World War II production were labor and business. The cooperation between labor unions and corporations was crucial in increasing the production of goods and supplies needed for the war effort. Labor unions played a key role in ensuring fair wages and working conditions for workers, while businesses increased their output to meet the demands of the war.
Learn more about US production during World War II