Which of the following best describes the federal government's response to upton sinclair's the jungle?
-congress immediately passed legislation that regulated the meat-packing industry.
-congress passed legislation that regulated the meat-packing industry only after sending a team of government investigators to plants and slaughterhouses.
-congress did not believe sinclair and told the public that the facts in his book were false.
-congress passed legislation that protected the leaders and business owners of the meat-packing industry.