Human activities in the recent past have caused the increased concentration of methane in the ruralarea, but a lot of it does not remain in the atmosphere because of -1. Its escape into the outer strato-sphere.2. It is used for cooking by rural people.3. The trapping of air in the polar ice capsWhich of the statements given above is/are correct?

• A. only 1 correct
• B. 2 only correct
• C. both are correct
• D. both are wrong