Which of the following arguments is flawed because its middle term is too narrow?

AAll objects are non-eternal because they are audible.

BSound is eternal because it is audible. ✓ Correct

CFire is cool because it is matter.

DWherever there is fire, there is smoke.

Correct answer: (B) Sound is eternal because it is audible.

Explanation

The flawed argument is "Sound is eternal because it is audible", whose middle term is too narrow.

Audibility belongs to sound alone and to nothing else whatever.

Present only in the subject, the reason is found in no similar instance and no dissimilar one.

With nothing to establish a pervasion, the too-narrow reason proves nothing.

Such an over-exclusive middle term is inconclusive and uncommon.

This narrowness defines the asadharana type of the inconclusive hetvabhasa.

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