[求助]GWD-12-12 - ChaseDream - Powered by Discuz!

Q12:

For similar cars and drivers, automobile insurance for collision damage has always cost more in Greatport than in Fairmont. olice studies, however, show that cars owned by Greatport residents are, on average, slightly less likely to be involved in a collision than cars in Fairmont. Clearly, therefore, insurance companies are making a greater profit on collision-damage insurance in Greatport than in Fairmont.

Which of the following is an assumption on which the argument depends?

Repairing typical collision damage does not cost more in Greatport than in Fairmont.
There are no more motorists in Greatport than in Fairmont.
Greatport residents who have been in a collision are more likely to report it to their insurance company than Fairmont residents are.
Fairmont and Greatport are the cities with the highest collision-damage insurance rates.
The insurance companies were already aware of the difference in the likelihood of collisions before the publication of the police reports.

我选C, 但也觉得答案A有理
能否告诉我C错在哪了?

谢谢!

If C is true, "G residents are more likely to report collision to insurance company than F residents are", then it costs more for the insurance company to insure G residents, and this could have caused the higher insurance fees for G residents. So, C weakens the conclusion that insurance companies are making greater profits in G -- C is not an assumption.

Insurance companies charge higher insurance fee in G does not mean that they will have a greater profit in Greatport than in Fairmont.