题目信息
Electronic Wizard has invented a very compact hand-held extremely powerful electric vacuum pump, primarily for applications in computer manufacturing. They also plan to make a version with a filter for cleaning surfaces, and market this as a cleaning device to homeowners. This hand-held electric vacuum pump will only be able to clean small areas, so homeowners would still need to own a conventional vacuum cleaner.
Which of the following, if true, provides the strongest grounds for a prediction that homeowners will buy the hand-held electric vacuum pump cleaner?
Which of the following, if true, provides the strongest grounds for a prediction that homeowners will buy the hand-held electric vacuum pump cleaner?
A:Some types of household dirt do not require a tremendous amount of power to be picked up.
B:Many homeowners have older conventional vacuum cleaners that need replacement.
C:Some household areas traditionally have been very hard to clean because they are too small and confined for conventional vacuum cleaners to reach.
D:When the homeowner is cleaning the larger area surfaces in the house, the hand-held electric vacuum pump will not need a filter replacement.
E:Houses in which a maid staff does the vacuuming are typically exceptionally clean.
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C:Some household areas traditionally have been very hard to clean because they are too small and confined for conventional vacuum cleaners to reach.
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