Express the Radical in Simplified Form $-\sqrt{405 k^{7} q^{8}}$ A) $9 \mathrm{k}^{7} \mathrm{q}^{8} \sqrt{5 \mathrm{k}}$

Multiple Choice

Express the radical in simplified form.Assume that all variables represent positive real numbers.
- $-\sqrt{405 k^{7} q^{8}}$

A) $9 \mathrm{k}^{7} \mathrm{q}^{8} \sqrt{5 \mathrm{k}}$
B) $-9 k^{3} q^{4} \sqrt{5 k}$
C) $-9 \mathrm{k}^{3} \mathrm{q}^{4} \sqrt{5}$
D) $9 \mathrm{k}^{3} \mathrm{q}^{4} \sqrt{5 \mathrm{k}}$