What among the following can be said about the fallacy of
Savyabhicara (irregular middle)?

The correct option is: It leads to different opposite conclusions

Explanation:
In the Nyāya school of classical Indian philosophy, a fallacy of inference is referred to as hetvābhāsa. One of the most common informal fallacies is Savyabhicāra, which is also known as the fallacy of the irregular middle (or Anaikāntika).

This fallacy occurs when the middle term (hetu or reason) is not uniformly or concomitantly related to the major term (sādhya). In a valid inference, the middle term must be present only in cases where the major term is present. However, in the case of Savyabhicāra, the middle term is irregular and can be associated with both the presence and the absence of the major term.

Because the middle term is not restricted to the major term, it fails to produce a single, definitive conclusion. Instead, it can lead to different, conflicting, or opposite conclusions. For example, if someone argues: "Sound is eternal because it is object of cognition," the middle term "object of cognition" (knowable) applies to both eternal things (like the soul) and non-eternal things (like a jar). Thus, the reason leads to two opposite conclusions (eternal and non-eternal), making the argument fallacious.