Bunuel
When a laptop computer needs maintenance, it is often shipped to a central location for service, then shipped back when the service is complete. In order to reduce the risk of additional problems caused by jostling in transit, MP Tech has hired part-time technicians to provide maintenance service on MP Tech laptops in cities across the country. Providing local technicians costs MP Tech approximately the same amount as paying for shipping as well as employing a large centralized staff.
Which of the following, if true, is further evidence that using local technicians will help MP Tech achieve its goal?
(A) Moving maintenance services away from a centralized location makes it less economical to provide phone support.
(B) Customers who take their laptop computers to local technicians pack their computers extremely carefully to avoid causing further problems in transit.
(C) MP Tech laptop computers are unique, so their technicians require special training.
(D) Purchasers of MP Tech laptop computers tend to use their machines more than average, and they require more frequent service than purchasers of other computer brands.
(E) Many of the local technicians MP Tech has hired have experience working as technicians at MP Tech's centralized location.
OFFICIAL EXPLANATION
B
The phrase "further evidence. . . achieve its goal", tells us we're looking at a strengthen question. The argument already tells us that MP Tech's strategy costs about the same as its previous approach, so we're looking for further validation.
Choice (A) weakens the argument a bit. Phone support isn't covered in the passage, but it probably isn't a good thing to make providing phone support less economical. If anything, it certainly doesn't strengthen the argument. (B) tells us that relying on customers (rather than shipping customers) keeps machines safe in transit, which is a concern mentioned in the passage. It's on-topic, and it strengthens the argument.
Choice (C) is irrelevant, comparing MP Tech technicians to technicians who might not need special training. (D) is another irrelevant comparison to other brands; the passage compares the previous MP Tech strategy to the current one. (E) seems neutral; if many of the technicians are the same, regardless of location, there is no change in the quality of service.
Choice (B) is correct.