Given pie-diagram represents the relative contribution of various greenhouse gases to total global warming. Identify the gases P, Q, R and S.

Options

A. `{:(P,Q,R,S),(N_(2)O,CFCs,CO_(2),"Methane"):}`
B. `{:(P,Q,R,S),(N_(2)O,"Methane",CFCs,CO_(2)):}`
C. `{:(P,Q,R,S),(CO_(2),N_(2)O,CFCs,"Methane"):}`
D. `{:(P,Q,R,S),(CO_(2),CFCs,N_(2)O,"Methane"):}`

Answer

C