Which of these was a result of Upton Sinclairs novel The Jungle?

Upton Sinclair's novel, "The Jungle" exposed unsanitary conditions in meat processing. At first, his novel was condemned as "lies". The President ordered investigations, which proved Sinclair was right. So, his novel led to the passage of The Pure Food and Drug Act and the Meat Inspection Act. These were signed into law on June 30th, 1906.