Rationalize the Denominator and Simplify $\frac{5 \sqrt{\mathrm{x}}}{\sqrt{\mathrm{x}}+3 \sqrt{\mathrm{y}}}$ A) $\frac{5 x-15 \sqrt{x y}}{x-9 y}$

Multiple Choice

Rationalize the denominator and simplify.
- $\frac{5 \sqrt{\mathrm{x}}}{\sqrt{\mathrm{x}}+3 \sqrt{\mathrm{y}}}$

A) $\frac{5 x-15 \sqrt{x y}}{x-9 y}$
B) $\frac{5 x-15 \sqrt{x y}}{x+3 y}$
C) $\frac{5 x-15 \sqrt{x y}}{x-3 y}$
D) $\frac{5 x-15 \sqrt{x y}}{x+9 y}$