Final answer:
"The Jungle" was written by Upton Sinclair and led to reforms in food safety regulations.
Step-by-step explanation:
The book "The Jungle," which exposed the conditions in the U.S. meatpacking industry, was written by Upton Sinclair. This muckraking novel highlighted the unsanitary practices within the industry and aimed to draw attention to the exploitation of workers and consumers by the capitalist system. The vivid and ghastly descriptions of the working conditions stirred a public outcry that led to significant reforms, such as the Pure Food and Drug Act and the Meat Inspection Act. Despite Sinclair's intention to advocate for Socialism, the book's legacy centers on its impact on food safety regulations.