Which of the following is the balanced form of the equation CH4 + O2 → CO2 + H2O?

(a) 2CH4 + 3O2 → 3CO2 + 4H2O


(b) CH4 + 2O2 → CO2 + 2H2O


(c) CH4 + 5O2 → CO2 + 5H2O


(d) you CH4 + O2 → CO2 + 2H2O