Answer:
C. Companies that produced goods.
Explanation:
This was an area in which the United States saw tremendous growth. After the Great War, the country enjoyed an economic boom. The 1920's saw the rise of consumerism, as people with more economic possibilities found new ways to spend their money. Moreover, advertising, as well as the idea of the "American Dream" pushed people to acquire goods that reflected their class and economic situation. All of this benefitted companies that produced goods.
