The correct option is B: IV, II, III and I
Chauri Chaura (1922) → Simon Commission (1928) → Dandi March (1930) → Second Round Table Conference (1931).
Memorise these key dates: Chauri Chaura – Feb 1922; Simon Commission – 1928; Dandi March – March 1930; Second Round Table Conference – Sept 1931. Questions on chronological order are common; learn events with years.