Methyl propane has the structural formula $\text{CH}_3\text{CH}(\text{CH}_3)\text{CH}_3$. The equation shows methyl propane reacting with chlorine. $\text{C}_4\text{H}_{10} + \text{Cl}_2 \rightarrow \text{C}_4\text{H}_9\text{Cl} + \text{HCl}$. From this reaction, how many structural isomers with molecular formula $\text{C}_4\text{H}_9\text{Cl}$ can be produced?
- A1
- B2
- C3
- D4