A
3, 2, 4, 1
B
3, 4, 1, 2
C
3, 1, 4, 2
D
2, 3, 4, 1
Correct answer: (c) 3, 1, 4, 2
Explanation
- A
3, 2, 4, 1
3, 2, 4, 1. Puts Arunachal before Punjab and Sikkim.
- B
3, 4, 1, 2
3, 4, 1, 2. Puts Sikkim (1975) before Punjab (1966).
- C
3, 1, 4, 2
3, 1, 4, 2. Nagaland 1963 → Punjab 1966 → Sikkim 1975 → Arunachal Pradesh 1987.
- D
2, 3, 4, 1
2, 3, 4, 1. Starts with Arunachal, the last of the four.
Summary. Official key is (c) 3, 1, 4, 2. Nagaland, Punjab, Sikkim, Arunachal Pradesh. Also note: Nagaland 1963 — 12th Amendment path; first of this set; Punjab 1966 — Punjabi Suba; Haryana carved the same year; Sikkim 1975 — 36th Amendment; 22nd State; Arunachal 1987 — Statehood with Goa, 20 February 1987.