Arrange the following events in chronological order and select the correct answer from the codes given below :
I. Rio Earth Summit
II. Publication of Brundtland Commission Report
III. Enforcement of Montreal Protocol
IV. Publication of 'The Limit to Growth' Report
1
I, IV, III, II
2
IV, II, III, I
3
IV, III, II, I
4
IV, I, III, II