Record companies defend their substitution of laser-read compact discs (CD’s) for the much less expensive traditional long-playing vinyl records in their catalogs by claiming that the audio market is ruled by consumer demand for ever-improved sound reproduction rather than by record manufacturers’ profit-motivated marketing decisions. But this claim cannot be true, because if it were true, then digital audiotape, which produces even better sound than CD’s, would be commercially available from these same record companies, but it is not.

Which of the following, if true, would most strengthen the argument against the record companies’ claim?


(A) When CD’s were first introduced in the audio-reproduction market, prices were high and selection was poor.

(B) Record companies are reluctant to attempt commercial production of digital audiotape until profits from the sales of CD’s have enabled them to recover their investments in compact-disc manufacturing technology.

(C) Some CD’s have been so much in demand that consumers have experienced long delays in obtaining copies.

(D) Because CD’s work according to principles very different from those that govern conventional recordings, commercial production of CD’s requires new kinds of manufacturing technology.

(E) Any valid comparison of CD audio reproductions to digital audiotape reproductions must be based on identical performances played back on the highest quality disc or tape player.
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[quote="Bunuel"]Record companies defend their substitution of laser-read compact discs (CD’s) for the much less expensive traditional long-playing vinyl records in their catalogs by claiming that the audio market is ruled by consumer demand for ever-improved sound reproduction rather than by record manufacturers’ profit-motivated marketing decisions. But this claim cannot be true, because if it were true, then digital audiotape, which produces even better sound than CD’s, would be commercially available from these same record companies, but it is not.

Which of the following, if true, would most strengthen the argument against the record companies’ claim?


(A) When CD’s were first introduced in the audio-reproduction market, prices were high and selection was poor. - INCORRECT as we are not concerned with price and selection quality

(B) Record companies are reluctant to attempt commercial production of digital audiotape until profits from the sales of CD’s have enabled them to recover their investments in compact-disc manufacturing technology. CORRECT as if record companies are focused on recovering their investments by gaining profits from CD rather than starting commercial production of digital autotapes , the claim is not true that the audio market is ruled by consumer demand for ever-improved sound reproduction rather than by record manufacturers’ profit-motivated marketing decisions as the entire focus is on recovering profits from CDs

(C) Some CD’s have been so much in demand that consumers have experienced long delays in obtaining copies. - INCORRECT as delay experienced by consumers is not what we are looking for

(D) Because CD’s work according to principles very different from those that govern conventional recordings, commercial production of CD’s requires new kinds of manufacturing technology. - OUT OF SCOPE as technology required for production of CD and methodology for working of CD is not relevant

(E) Any valid comparison of CD audio reproductions to digital audiotape reproductions must be based on identical performances played back on the highest quality disc or tape player.- OUT OF SCOPE as comparison of CD audio with other digital audiotapes is not the subject matter


QUESTION TYPE : STRENGTHENER

CONCLUSION : The claim is not true that the audio market is ruled by consumer demand for ever-improved sound reproduction rather than by record manufacturers’ profit-motivated marketing decisions.

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