For similar cars and comparable drivers, automobile insurance for collision damage has always cost more in Greatport than in Fairmont. Police 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.

In evaluating the argument, it would be most useful to compare

the level of traffic congestion in Greatport with the level of traffic congestion in Fairmont

the cost of repairing collision damage in Greatport with the cost of repairing collision damage in Fairmont

the rates Greatport residents pay for other forms of insurance with the rates paid for similar insurance by residents of Fairmont

the condition of Greatport's roads and streets with the condition of Fairmont's roads and streets

the cost of collision-damage insurance in Greatport and Fairmont with that in other cities

##### 考题讲解

（因）前提：保险公司在Greatport的车祸保险费高于Fairmont，且Greatport的车比Fairmont的车更不容易发生事故
（果）结论：保险公司在汽车险上所赚的钱，Greatport多于Fairmont

A选项：Greatport和Fairmont两地的交通拥挤度相比。交通拥挤度和保险公司利润无关。

B选项：Correct. Greatport和Fairmont两地的损失修补费相比。显然地，损失修补费将会决定保险公司的成本，继而决定利润。

C选项：Greatport和Fairmont两地居民买其他险种的比例相比。居民保险的数量和保险公司利润无关。

D选项：
Greatport和Fairmont两地的路况相比。路况好坏，只要不涉及理赔，就和保险公司利润无关。

E选项：
Greatport和Fairmont两地跟其它地方的车祸保险费相比。其它地域的保险和这两地保险公司的利润无关。