Answer:
C. Most Americans blamed Hoover for their continued poverty, crisis, and distress.
Explanation:
Americans were going through rough times, they believed Hoover's view of rugged individualism was the reason they were failing. The fact he didn't wan't recognize that the depression was literally starving people do death caused peoples opinions to sway out of his favor.
No matter what the technology is, but generally the more crops we produce, the lower the prices are. However we can observe from a few years kind of a new phenomenon: there's a bigger demand for some of the food products, so we're producing more but the prices are getting higher too.
The imposition of higher tariffs.
The answer is Colonization