Simplify (A Ssume All Variables Are Nonzero $\left(\frac{5 x^{6} y^{2}}{7 z^{6}}\right)^{3}$

Multiple Choice

Simplify. (A ssume all variables are nonzero.)
- $\left(\frac{5 x^{6} y^{2}}{7 z^{6}}\right) ^{3}$

A) $\frac{125 x^{18} y^{6}}{343 z^{18}}$

B) $\frac{125 x^{18} y^ 5}{343 z^{18}}$

C) $\frac{125 x^{9} y^{5}}{343 z^{9}}$

D) $\frac{125 x^{18} y^{6}}{7 z^{9}}$