Final answer:
Upton Sinclair wrote 'The Jungle,' an exposé of the meat-packing industry, leading to the Pure Food and Drug Act of 1906 and the establishment of the FDA. His work inspired regulatory reforms to ensure the safety and labeling of food and drugs.
Step-by-step explanation:
Upton Sinclair wrote The Jungle, an influential novel that exposed the unsanitary conditions and unethical business practices in the meat-packing industry. This muckraking work garnered public attention and played a pivotal role in the enactment of the Pure Food and Drug Act of 1906. As a knock-on effect, it also prompted the establishment of federal agencies like the Food and Drug Administration (FDA), which was tasked with ensuring the safety and proper labeling of food and drugs.
While Sinclair intended to advocate for Socialism and highlight the exploitation of workers, the public and politicians were especially appalled by the unhygienic practices affecting consumers. President Roosevelt, spurred by the public's strong reaction to Sinclair's descriptions, pushed for legislative reforms such as the Meat Inspection Act and the Pure Food and Drug Act, significantly improving the transparency and safety of the food and drug industries in America.