Rationalize the Denominator $\frac{5 x}{\sqrt{9+x}}$ A) $\frac{5 x}{9+x}$ B) $5 x \sqrt{9+x}$ C) $\frac{5 x \sqrt{9+x}}{9+x}$

Multiple Choice

Rationalize the denominator. Assume that all variables represent positive real numbers and that the denominator is not zero.
- $\frac{5 x}{\sqrt{9+x}}$

A) $\frac{5 x}{9+x}$

B) $5 x \sqrt{9+x}$

C) $\frac{5 x \sqrt{9+x}}{9+x}$

D) $5 x$