Advertisement: Over 80 percent of the people who test-drive a Zenith car end up buying one. So be warned: you should not test-drive a Zenith unless you are prepared to buy one, because if you so much as drive a Zenith around the block, there is a better than 80 percent chance you will choose to buy it.
If the advertisement is interpreted as implying that the quality of the car is unusually impressive, which one of the following, if true, most clearly casts doubt on that implication?
(A) Test-drives of Zenith cars are, according to Zenith sales personnel, generally more extensive than a drive around the block and encounter varied driving conditions. - WRONG. Strengthens the argument in the manner that though the cars may be extensive as claimed by sales personnel, it is only after someone drives the car that they buy it.
(B) Usually dealers have enough Zenith models in stock that prospective purchasers are able to test-drive the exact model that they are considering for purchase. - WRONG. Irrelevant to argument.
(C) Those who take test-drives in cars are, in overwhelming proportions, people who have already decided to buy the model driven unless some fault should become evident. - CORRECT. If someone already has made up his/her mind to buy then test-drive is just a formality. Weakens thus.
(D) Almost 90 percent of the people who purchase a car do not do so on the day they take a first test-drive but do so after another test-drive. - WRONG. It somehow rather strengthens the argument by saying that it makes people go for another test-drive.
(E) In some Zenith cars, a minor part has broken within the first year, and Zenith dealers have issued notices to owners that the dealers will replace the part with a redesigned one at no cost to owners. - WRONG. Out of scope.
IMO Answer C.
_________________
Pain + Reflection = Progress | Ray Dalio
Good Books to read prior to MBA