na hy avinābhāvitvamātreṇaiva vinā pakṣadharmatvaṃ śabde dharmiṇi cākṣuṣatvam anityatvasya gamakaṃ dṛṣṭam ityayuktaḥ prathamaḥ pakṣaḥ
For mere inseparability alone, without being a property of the subject, is not seen to prove non-eternality of sound through visibility - thus the first alternative is incorrect.