Which expression is equivalent to $\sqrt{\frac{55 x^7 y^6}{11 x^{11} y^8}}$? Assume $x>0$ and $y>0$.
A$\frac{x^2 \sqrt{5}}{y}$
B$\frac{y \sqrt{5}}{x^2}$
C$\frac{\sqrt{5}}{x^2 y}$
D$\frac{x \sqrt{5}}{y}$
A$\frac{x^2 \sqrt{5}}{y}$
B$\frac{y \sqrt{5}}{x^2}$
C$\frac{\sqrt{5}}{x^2 y}$
D$\frac{x \sqrt{5}}{y}$