In 1869, Ladenburg proposed a structure for benzene, $\text{C}_6\text{H}_6$, with one hydrogen atom bonded to each carbon atom. A compound $\text{C}_6\text{H}_4\text{Cl}_2$ could be made using the same carbon framework as the Ladenburg structure. How many structural isomers does this compound have?
- A3
- B4
- C5
- D6