When 2,3-dimethylpent-2-ene, $(\text{CH}_3)_2\text{C=C(CH}_3)\text{CH}_2\text{CH}_3$, is reacted with cold, dilute $\text{KMnO}_4$, the resulting product is then heated with an excess of concentrated $\text{H}_2\text{SO}_4$ at $180^\circ\text{C}$, producing a mixture of isomeric hydrocarbons with molecular formula $\text{C}_7\text{H}_{12}$. What is the name of one of the isomeric hydrocarbons?
- A2,3-dimethylpenta-1,2-diene
- Bcis-2,3-dimethylpenta-1,3-diene
- C2,3-dimethylpenta-1,4-diene
- D3,4-dimethylpenta-1,3-diene