The bolded sentence, "Many people from my hometown worked on the Model T assembly line," should be removed because:
- It provides information that is off-topic. This sentence introduces a personal anecdote that does not directly relate to the overall popularity and significance of the Ford Model T, which is the main focus of the paragraph. The paragraph is primarily discussing the impact of the Model T on the automotive industry and its widespread appeal, rather than individual experiences related to the assembly line.
Thus, the correct answer is 1: it provides information that is off-topic.