Rewrite Without Rational Exponents, and Simplify, If Possible $\left(x^{8} y^{8}\right)^{1 / 9}$

Multiple Choice

Rewrite without rational exponents, and simplify, if possible.
- $\left(x^{8} y^{8}\right) ^{1 / 9}$

A) $\sqrt[9]{x^{8} y^{8}}$
B) $\frac{1}{\sqrt[9]{x^{8} y^{8}}}$
C) $x^{72} y^{72}$
D) $\sqrt[8]{x^{9} y^{8}}$