The given compound is a benzyl chloride because the halogen atom (Cl) is attached to a benzylic group (C–CH₂), which is connected to a benzene ring. This makes it a benzyl halide. Specifically, the carbon bearing the chlorine atom is a \(\text{C}^3\) carbon (tertiary carbon), making it a tertiary benzyl chloride.
Thus, the correct answer is:
\[
\text{Benzyl chloride is a} \, 3^0 \, \text{benzyl chloride.}
\]