According to Classical Indian School of Logic (Nyaya) the argument - "Sound is eternal because it is produced" is fallacious because:

Correct option is A

In Nyaya logic, this fallacy is known as "Viruddha Hetu" (contradictory reason). It occurs when the middle term (hetu) is not positively related to the major term (sadhya), but instead demonstrates a relationship of exclusion or contradiction.
In the argument "Sound is eternal because it is produced," the middle term (produced) contradicts the major term (eternal). By definition, something that is produced cannot be eternal because it has a beginning in time and is subject to destruction. Hence, the middle term is pervaded by the absence of the major term, making the reasoning invalid.
Information Booster: · Hetu (Middle Term): The reason or evidence presented in the argument.
· Sadhya (Major Term): The property to be proved.
· Pervasion (Vyapti): The logical relationship between the middle term and the major term.
· Viruddha Hetu: A fallacy where the middle term contradicts the major term.