Question: Which book by one of the leading "muckrakers" of the progressive era of the late 19th and early 20th centuries, is an exposé about the Standard Oil Company?
Sentence (from "The History of the Standard Oil Company"): It is an exposé about the Standard Oil Company, run at the time by oil tycoon John D. Rockefeller, the richest figure in American history.
Relevant evidence: No