How is the rise of consumerism as part of the 1920s American economic system apparent in the excerpt from Hoover?

A. He mentions how rapidly the quality of life has gone up for most Americans.
B. He links consumer choice with the unique personality of each individual.
C. Hoover invokes the individual right to engage in commerce and consumerism.
D. Hoover credits American individualism with the advent of the radio and automobile.

C. Hoover invokes the individual right to engage in commerce and consumerism.

The rise of consumerism as part of the 1920s American economic system is apparent in the excerpt from Hoover in multiple ways.

Firstly, option A mentions how rapidly the quality of life has gone up for most Americans. This implies that the increase in consumerism contributed to the improvement of the standard of living during this time period.

Secondly, option B links consumer choice with the unique personality of each individual. This suggests that consumerism allowed people to express their individuality through the choices they made as consumers.

Thirdly, option C states that Hoover invokes the individual right to engage in commerce and consumerism. This indicates that consumerism was seen as a fundamental right that individuals had and were encouraged to exercise.

Lastly, option D states that Hoover credits American individualism with the advent of the radio and automobile. This implies that consumerism, driven by individual desires and choices, played a role in the development and popularity of new technologies such as the radio and automobile.

Therefore, all of the given options (A, B, C, and D) show how the rise of consumerism is apparent in the excerpt from Hoover.