Option 1 -> Incorrectly matches Maxim with "small hard ball" and misaligns all other terms.
Option 2 -> Correctly matches: Maxim (established principle), Pedagogy (art of teaching), Instigate (cause something bad), Pellet (small hard ball).
Option 3 -> Incorrectly matches Maxim with "cause something bad to happen" and Instigate with "established principle".
Option 4 -> Incorrectly matches Maxim with "art of teaching" and reverses Pedagogy with "established principle".
Hence, Option 2: (A) - (IV), (B) - (I), (C) - (II), (D) - (III) -> Maxim is indeed an established principle or rule; Pedagogy is the study/method of teaching; Instigate means to provoke or cause (often negative actions); and Pellet is a small compressed ball of material -> correct