Which development enabled many Americans to spend less time and effort on household chores in the 1920s?

A. increased availability of movies

B. increased availability of consumer goods

C. Increased availability of radio and records

D. decreased availability of the automobile

B - increased availabity of consumer goods

When consumer goods became more readily available in the 1920s, Americans were able to spend less time searching for the goods (grocery shopping, clothes, etc) and were able to spend more time on leisure activities.

The development that enabled many Americans to spend less time and effort on household chores in the 1920s was that of the increased availability of consumer goods.

Explanation:

The period of the early 1900s allowed the people of America to experience a huge decrease in the gap between demand and supply of consumer goods. Until the 1920s, the production techniques were modernized and it became possible to meet the demands on a greater scale. The surge in the production of frequently used consumer goods almost abolished the gap between demand and supply and made these goods easily available. Now, the Americans didn't have to waste time looking around for these goods here and there. This allowed them to spare more time and efforts to do things other than household chores.