Given a chemical reaction, methane (CHâ‚„) burns in oxygen (Oâ‚‚) to produce carbon dioxide (COâ‚‚) and water (Hâ‚‚O). Which of these represent an unbalanced equation with the correct chemical formulas?

A. CHâ‚„ + Oâ‚‚COâ‚‚ + Hâ‚‚O.
B. CHâ‚„+ COâ‚‚Oâ‚‚ + Hâ‚‚O
C. COâ‚‚+ Hâ‚‚O CHâ‚„+ Oâ‚‚
D. CHâ‚„O2 + COâ‚‚+ Hâ‚‚O