The table lists some properties of four fuels. Which fuel is gaseous at room temperature and forms two products when it burns in an abundant supply of air?
- Ahydrogen, $\text{H}_2$
- Bmethane, $\text{CH}_4$
- Coctane, $\text{C}_8\text{H}_{18}$
- Dwax, $\text{C}_{31}\text{H}_{64}$