Question ID:PT35 S1 Q7 Passage:Due to wider commercial availability of audio recordings of authors reading their own books, sales of printed books have dropped significantly. Stem:Which one of the following conforms most closely to the principle illustrated above? Correct Answer Choice:CChoice A:Because of the rising cost of farm labor, farmers began to make more extensive use of machines. Choice B:Because of the wide variety of new computer games on the market, sales of high-quality computer video screens have improved. Choice C:Because a new brand of soft drink entered the market, consumers reduced their consumption of an established brand of soft drink. Choice D:Because a child was forbidden to play until homework was completed, that child did much less daydreaming and focused on homework. Choice E:Because neither of the two leading word processing programs has all of the features consumers want, neither has been able to dominate the market.