The SI unit for electrical resistivity is:

Correct option is C

​$$\text{The SI unit of electrical resistivity } (\rho) \text{ is derived from the formula:} \\\rho = R \cdot \frac{A}{L} \\\text{Where:} \\\bullet \quad R \text{ is the resistance in } \mathbf{ohms\ (\Omega)}, \\\bullet \quad A \text{ is the cross-sectional area in } \mathbf{square\ meters\ (m^2)}, \\\bullet \quad L \text{ is the length in } \mathbf{meters\ (m)}. \\\text{Thus, the unit of resistivity is:} \\\textbf{Ohm meter } (\Omega \cdot m).$$​​