Final answer:
Replace the original subjective and ad hominem statement with a rational reason focusing on community needs, such as accommodating those who shop late due to their work schedules.
Step-by-step explanation:
To improve the effectiveness of the argument that the grocery store should remain open after 8:00 p.m., the sentence in question could be replaced with a statement that provides a rational and relatable reason for extended hours. For example:
• Many people in town do grocery shopping after they come home late.
This replacement would strengthen the argument by focusing on the practical needs of the community, suggesting that keeping the store open later would accommodate the schedules of potential customers who might not be able to shop during traditional hours.