Correct answer: (c) III, I, II, IV
Explanation
- A
I, II, III, IV
(a) I, II, III, IV. Project Tiger (1973) cannot precede the Wildlife (Protection) Act 1972, so this order is impossible.
- B
II, I, IV, III
(b) II, I, IV, III. Project Elephant (1992) cannot open the list, and the Biodiversity Act cannot precede the 1972 wildlife law.
- C
III, I, II, IV
(c) III, I, II, IV. Wildlife (Protection) Act 1972, Project Tiger 1973, Project Elephant 1992, Biological Diversity Act 2002. That chronology is the official key.
- D
III, IV, I, II
(d) III, IV, I, II. It places the 2002 Biodiversity Act before Project Tiger (1973) and Project Elephant (1992).
Summary. Official key is (c). Order of commencement: Wildlife Protection Act (1972), Project Tiger (1973), Project Elephant (1992), Biological Diversity Act (2002).