Q1. The indeclinable ṛte ('without') in jñānāt ṛte na mokṣaḥ governs which case, and how does it differ from vinā?
Explanation
Ṛte ('without') is an upapada that fixes pañcamī, hence jñānāt ṛte na mokṣaḥ — 'without knowledge there is no liberation'. Its near-synonym vinā is more flexible and may take dvitīyā, tṛtīyā or pañcamī. A invents a caturthī rule, C wrongly uses saptamī, and B misassigns prathamā. Only D states the ṛte–pañcamī rule and the vinā contrast correctly.
