Question: The Helicon Home Colony was an experimental community formed by author Upton Sinclair using proceeds from what novel that portrayed the harsh conditions and exploited lives of immigrants in the United States in Chicago and similar industrialized cities? 
Sentence (from "The Jungle"): However, most readers were more concerned with his exposure of health violations and unsanitary practices in the American meatpacking industry during the early 20th century, greatly contributing to a public outcry which led to reforms including the Meat Inspection Act.
Relevant evidence: No