potega-displaystyle-left-fracyx-right5-gdzie-x-i-y-sa

A)

$\displaystyle -5 \cdot \frac{x}{y}$ \displaystyle -5 \cdot \frac{x}{y}

B)

$\displaystyle \left( \frac{x}{y} \right)^{-5}$ \displaystyle \left( \frac{x}{y} \right)^{-5}

C)

$\displaystyle \frac{y^5}{x}$ \displaystyle \frac{y^5}{x}

D)

$\displaystyle -\left( \frac{x}{y} \right)^{5}$ \displaystyle -\left( \frac{x}{y} \right)^{5}