Biogas is a mixture of [MHCET 2002]

• A. \[CO+{{H}_{2}}+C{{O}_{2}}\]
• B. \[C{{H}_{4}}+CO+C{{O}_{2}}\]
• C. \[C{{H}_{4}}+C{{O}_{2}}+{{H}_{2}}\]
• D. \[CO+C{{O}_{2}}+N{{O}_{2}}\]