OA/Explanations are found here: http://www.manhattangmat.com/forums/in- ... 10159.html
In order to determine automobile insurance premiums for a driver, insurance companies calculate various risk factors; as the risk factors increase, so does the premium. Certain factors, such as the driver’s age and past accident history, play an important role in these calculations. Yet these premiums should also increase drives. After all, a person’s chance of being involved in a mishap increases in proportion to the number of times that person drives.
17. Which one of the following, if true, most undermines the argument?
(A) People who drive in frequently are more likely to be involved accidents that occur on small roads than in highway accidents.
(B) People who drive infrequently are less likely to follow rules for safe driving than are people who drive frequently.
(C) People who drive infrequently are less likely to violate local speed limits than are people who drive frequently.
(D) People who drive frequently are more likely to make long-distance trips in the course of a year than are people who drive infrequently.
(E) People who drive frequently are more likely to become distracted while driving than are people who drive infrequently.
18. The claim that insurance premiums should increase as the frequency with which a driver drives increases plays which one of the following roles in the argument?
(A) a premise of the argument
(B) the conclusion of the argument
(C) evidence offered in support of one of the premises
(D) an assertion phrased to preclude an anticipated objection
(E) a clarification of a key term in the argument
IMO B and C respectively.
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