The increase in consumer spending during the 1920s was fueled in part by
a) higher taxes.
b) unemployment.
c) decreased land values.
d) overreliance on credit.

The answer is D, I think. Not completely sure, but it's easy to rule out other options in multiple choice if you have to. The consumer spending is increasing, and if you were unemployed you wouldn't exactly be going out and buying tons of stuff with all that money you don't have, right? And if the taxes were higher you wouldn't be going out and buying things with all that tax on them. Hope this helped!