Simplify the Expression $\left(r^{1 / 4} s^{1 / 4}\right)^{2}$ A) $\mathrm{r}^{1 / 8_{\mathrm{S}} 1 / 8}$

Multiple Choice

Simplify the expression. Assume all variables represent nonnegative real numbers.
- $\left(r^{1 / 4} s^{1 / 4}\right) ^{2}$

A) $\mathrm{r}^{1 / 8_{\mathrm{S}} 1 / 8}$
B) $r^{1 / 16} s^{1 / 16}$
C) $\mathrm{r}^{1 / 2} \mathrm{~s}^{1 / 2}$
D) $r^{2} s^{2}$