Passage Summary: The author believes that people who drive more often should pay higher insurance rates because being on the road more frequently increases their chances of getting into an accident.

Conclusion: Automobile insurance premiums ought to be raised for individuals who drive more frequently.

Reasoning: Insurance costs are based on risk, and the statistical likelihood of an accident increases in direct proportion to how much time a person spends driving.

Analysis: To weaken this argument, we need to find a consideration that breaks the link between driving frequency and increased insurance risk. The author assumes that more time on the road automatically makes a driver a bigger liability for the insurance company. Look for an answer that suggests frequent drivers might be safer in other ways—perhaps they are more experienced, or maybe they drive primarily on safer roads—which would offset the risk of their increased mileage. Alternatively, an answer might show that the 'mishaps' associated with high-frequency driving are less costly than those of infrequent drivers.