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Math·Advanced Math·Equivalent expressions

hard

For all positive values of $x$ and $y$, the given expression is equivalent to which of the following?

$\frac{\sqrt[3]{x^{17}{y}^5}}{5x^2(\sqrt[8]{y^8})}$

I. $\frac{(x^{\frac{14}{3}})(y^{\frac{5}{3}})}{5xy}$
II. $\frac{\sqrt[3]{x^{11}{y}^2}}{5}$

A

I only

B

II only

C

I and II

D

Neither I nor II