Option 1 -> "promptly" doesn't fit dancing, "beautifully" doesn't fit a thief's movement, "stealthily" doesn't fit completing assignments.
Option 2 -> "stealthily" doesn't match dancing, "promptly" doesn't suit a thief trying to be quiet, "casually" doesn't align with on-time submission.
Option 3 -> "beautifully" perfectly describes dancing in competition, "stealthily" fits a thief moving quietly, "promptly" matches completing work on time, "casually" suits walking through streets.
Option 4 -> "casually" doesn't fit competitive dancing, "beautifully" doesn't describe a thief's careful movement, "stealthily" doesn't match assignment completion.
Hence, Option 3: (A) - (IV), (B) - (I), (C) - (II), (D) - (III) -> The adverbs match contextually: dancing "beautifully" in competition shows grace, moving "stealthily" captures a thief's quiet sneaking, completing work "promptly" indicates timely efficiency, and walking "casually" reflects a relaxed pace through streets -> correct