UPSC Question

Consider the following statements :
1. Kyoto Protocol came into force in the year 2005
2. Kyoto Protocol deals primarily with the depletion of the Ozone layer.
3. Methane as a greenhouse gas is more harmful than carbon dioxide
Which of the statements given above is/are correct?
(a) 1 and 2 (b) 1 and 3
(c) 1 Only (d) 3 Only