Correct answer: (c) I, II, III, IV
Explanation
- A
I, III, IV, II
(a) I, III, IV, II. This ratifies accession and brings the State Constitution into force before the Constitution of India (26 January 1950). The Union Constitution cannot sit last among these four.
- B
III, IV, I, II
(b) III, IV, I, II. It starts with the J&K Constituent Assembly’s ratification, which came years after Hari Singh’s Instrument of Accession (26 October 1947).
- C
I, II, III, IV
(c) I, II, III, IV. Hari Singh signed the Instrument of Accession (26 October 1947); the Constitution of India came into force (26 January 1950); the J&K Constituent Assembly ratified accession (1954); the State Constitution came into force (26 January 1957). (c) Official key.
- D
IV, III, II, I
(d) IV, III, II, I. Opening with the 1957 State Constitution reverses the entire Kashmir accession-and-constitution timeline.
Summary. Official key is (c). The four events run 1947 accession, 1950 Union Constitution, 1954 ratification by the J&K Constituent Assembly, 1957 State Constitution. Only I, II, III, IV keeps that order.