Simplify the Radical $\begin{aligned} &-\sqrt[4]{\frac{16}{m^{4}}} \end{aligned}$ A) $-\frac{2}{m}$ B) Not a Real Number
C) } \Frac{4}{m^{2}}
D)

Multiple Choice

Simplify the radical. Assume that all variables represent positive real numbers
- $\begin{aligned} &-\sqrt[4]{\frac{16}{m^{4}}} \end{aligned}$

A) $-\frac{2}{m}$
B) Not a real number
C) } \frac{4}{m^{2}}
D) $\frac{2}{m}$