Arrange the following in the chronological order in which these happened :
(a) Paris Climate Agreement
(b) Rio Earth Summit
(c) Brundtland Commission
(d) Kyoto protocol
Choose the correct option :
1
(a), (b), (c), (d)
2
(b), (d), (a), (c)
3
(d), (b), (c), (a)
4
(c), (b), (d), (a)