Final answer:
Upton Sinclair's novel The Jungle intended to raise awareness for workers' conditions but ultimately led to the focus on meat inspection laws.
Step-by-step explanation:
Upton Sinclair hoped his work would draw attention to the plight of workers and the need for social reforms, but instead, it led to a focus on the public's concern over their personal health—specifically in regards to the meat inspection laws. The novel The Jungle highlighted the unsavory conditions of the meatpacking industry, which in turn influenced the public and politicians to support the passage of legislations like the Pure Food and Drug Act and the Federal Meat Inspection Act. These legislations sought to ensure the cleanliness of meat production and the integrity of food labels. Therefore, the correct answer to the student's question is B) Workers' conditions; meat inspection laws.