Answer:
Option: a. Installment buying
Explanation:
During the 1920s, American's society changed by introducing new gadgets which helped people getting to involve with modernity. In the 1920s, American people introduced new appliances like gadgets, the washing machine, television, automobiles, phonographs, instant camera, the radio, jukebox, and refrigerator. American people to buy expensive items depended on installment plans. Store credit and installment plans were available to a larger segment of the population.
