Question

what conclusion can you draw from the information in this graph that supports what you have learned about the economic boom of the 1920s?
consumers spent more for electrical power, which supported the boom.
as more consumers got electricity they could purchase electric appliances, which supported the boom.
factories had electricity, so they could produce more goods, fueling the boom.

Explanation:

The graph shows the percentage of dwellings with electricity increasing over time. During the 1920s economic boom, as more consumers had electricity (as per the graph's upward trend), they could purchase electric appliances. This consumer - driven demand for electric appliances (a form of consumer spending on new goods made possible by electricity access) supported the economic boom. The first option about consumers spending more for electrical power is too general (the graph is about dwellings having electricity, not just spending on power). The third option about factories is not directly supported by the graph which is about dwellings (not factories).

Answer:

As more consumers got electricity they could purchase electric appliances, which supported the boom.