Correct answer: (a) IV, II, I, III
Explanation
- A
IV, II, I, III
(a) IV, II, I, III. Ferozeshah Mehta died on 5 November 1915; Jallianwala Bagh was 13 April 1919; the Simon Commission was appointed in November 1927; Gandhi’s Dandi March began 12 March 1930. That is the official chronology.
- B
I, II, IV, III
(b) I, II, IV, III. Opens with Simon (1927), which cannot precede Jallianwala (1919) or Mehta’s death (1915).
- C
II, III, IV, I
(c) II, III, IV, I. Puts Dandi March before Mehta’s death and before Simon—1930 cannot sit before 1915.
- D
IV, III, II, I
(d) IV, III, II, I. After Mehta it jumps to Dandi (1930) before Jallianwala (1919).
Summary. Official key is (a) IV, II, I, III. Mehta’s death 1915 → Jallianwala 1919 → Simon appointment 1927 → Dandi 1930. Honour the stored letter (a).