Hope this helps and I made It more simpler.
Part A :What He Represented?
Hoover represented a continuation of the post-war boom that had gone on under Harding and Coolidge.
Times had been good in the 20's and most people thought the boom would last.
Part B Who Is He?
Herbert Clark Hoover was an American politician who served as the 31st President of the United States from 1929 to 1933.