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

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

A.   Repairing typical collision damage does notcost more in Greatport than in Fairmont.

B.   There are no more motorists in Greatportthan in Fairmont.

C.   Greatport residents who have been in a collisionare more likely to report it to their insurance company than Fairmont residents are.

D.   Fairmont andGreatport are the cities with the highest collision-damage insurance rates.

E.    The insurance companies were already awareof the difference in the likelihood of collisions before the publication of thepolice reports.