Identify the Radicand $4 \mathrm{ab} \sqrt{\mathrm{b}^{2}-7}$ A) $b^{2}-7$ B) $\sqrt{b^{2}-7}$ C) $b^{2}$ D) $4 \mathrm{ab}$

Multiple Choice

Identify the radicand.
- $4 \mathrm{ab} \sqrt{\mathrm{b}^{2}-7}$

A) $b^{2}-7$
B) $\sqrt{b^{2}-7}$
C) $b^{2}$
D) $4 \mathrm{ab}$