Which equation shows the complete combustion of an alkene, $\text{C}_n\text{H}_{2n}$?
- A$\text{C}_n\text{H}_{2n} + \frac{3n}{2}\text{O}_2 \rightarrow n\text{CO}_2 + 2n\text{H}_2\text{O}$
- B$\text{C}_n\text{H}_{2n} + \frac{3n}{2}\text{O}_2 \rightarrow n\text{CO}_2 + n\text{H}_2\text{O}$
- C$\text{C}_n\text{H}_{2n} + 2n\text{O}_2 \rightarrow n\text{CO}_2 + n\text{H}_2\text{O}$
- D$\text{C}_n\text{H}_{2n} + 2n\text{O}_2 \rightarrow n\text{CO}_2 + 2n\text{H}_2\text{O}$