Answer; <span>The factors that led to his election included; -Managed relief to Europe in the first World War - He was a secretary of Commerce -He supported prohibition promised to maintain prosperity. Additionally the belief that the Catholic Church financed the Democratic Party and would rule the US if Alfred E. Smith became president, and Republicans taking credit for 1920's prosperity led to Herbert Hoover winning the presidential election in 1928. </span>
The factors that contributed to Herbert Hoover's election in 1928 included the fact that he was Secretary of Commerce, he managed relief to Europe in WWI, he supported the Prohibition, and promised to maintain prosperity.
The correct answer is "C". It refers to an entire universe of people "Americans" as well as the phrase "in excess" which includes many of the indulgences and "deregulations".These are presented as the element of the the main reasons for the "economic crisis" in an extended period of time (the 1920s). Any of the other options qualifies as correct simply because they provide supporting details.