Rewrite as a Radical Expression and Simplify If Possible $\left(4 x^{4} y^{4}\right)^{1 / 2}$

Multiple Choice

Rewrite as a radical expression and simplify if possible. Assume all variables represent nonnegative real numbers.
- $\left(4 x^{4} y^{4}\right) ^{1 / 2}$

A) $2 x^{4} y^{2}$
B) $2 x^{2} y$
C) $2 x^{2} y^{2}$
D) $x^{2} y^{2}$