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

Explanation

In 1972, a group of club members, represented by Dennis Meadows, published the first research report, that is, the sensational "The Limits to Growth".

"Our Common Future" - Book by Brundtland Commission and Gro Harlem Brundtland was published in 1987.

Montreal Protocol was agreed on 16 September 1987, and entered into force on 1 January 1989.

The United Nations Conference on Environment and Development, also known as the Rio de Janeiro Earth Summit, the Rio Summit, the Rio Conference, and the Earth Summit, was a major United Nations conference held in Rio de Janeiro from June 3 to June 14, 1992.