Final answer:
The Pure Food and Drug Act of 1906 was passed by Congress in response to Upton Sinclair's novel, The Jungle.
Step-by-step explanation:
The subject of this question is History and it pertains to the Pure Food and Drug Act of 1906. This act was passed in response to Upton Sinclair's novel, The Jungle, which exposed the unsanitary practices of the meatpacking industry. The correct answer is A. Congress as it was Congress that passed the Pure Food and Drug Act of 1906.
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