Which of the following topics is the most narrow?television programsfamous inventionscost of school lunchAmerican automobiles

To determine which topic is the most narrow among the options provided—television programs, famous inventions, cost of school lunch, and American automobiles—we need to analyze the breadth and scope of each topic.

1. Television Programs: This topic encompasses a wide range of shows across various genres, networks, and historical periods. It includes scripted shows, reality TV, documentaries, and more, making it quite broad.

2. Famous Inventions: This is also a broad category as it can cover many fields such as technology, medicine, and the arts. Famous inventions have occurred throughout history and can include anything from the wheel to the internet.

3. Cost of School Lunch: This topic is specific, as it centrals on a particular context (schools) and a defined subject (lunch costs). However, it can still vary by region, time, and type of school, but it generally remains within a narrow scope.

4. American Automobiles: This topic focuses on cars produced in America but still includes a wide variety of manufacturers, types of vehicles, and historical data.

Conclusion

Among the options presented, the cost of school lunch is the most narrow topic, as it pertains to a specific scenario and context compared to the other broader categories.