'अव्यय' की विशेषता क्या है?

उत्तर: (B) इनका रूप कभी नहीं बदलता — Avyay (indeclinables) never change form regardless of ling, vachan, karak, or kaal. They remain constant. Examples: Kintu (but), Parantu (however), Yadi (if), Aaj (today), Yahan (here). They include k...