Final answer:
Eric Schlosser's 'Fast Food Nation' focuses on the impact of fast-food production on workers and society, examining how the industry's practices contribute to various societal issues.
Step-by-step explanation:
Eric Schlosser in Fast Food Nation: The Dark Side of the All-American Meal focuses on the fast-food production process to explore the impact of fast-food production on workers and society (Option d). His investigation goes beyond the aesthetic appeal of fast-food establishments or their culinary offerings. Instead, it delves into the systemic issues that arise from the fast-food industry's business model, known as McDonaldization, which emphasizes efficiency, predictability, calculability, and control. The influence and consequences of this model are evident in the homogenization of products, the standardization of services, and the industrialized methods used in food preparation. Furthermore, by examining the production process, Schlosser critically assesses how these practices contribute to broader societal issues such as environmental degradation, obesity, and the quality of employment in these establishments.