Which shows the following expression after the negative exponents have been eliminated?

StartFraction x y Superscript negative 6 Baseline Over y squared x Superscript 6 Baseline y Superscript 6 Baseline EndFraction, x not-equals 0, y not-equals 0
StartFraction x Superscript 4 Baseline Over y squared x Superscript 6 Baseline y Superscript 6 Baseline EndFraction
StartFraction x x Superscript 4 Baseline Over y squared y Superscript 6 Baseline EndFraction
StartFraction x Superscript 4 Baseline Over y squared x y Superscript 6 Baseline EndFraction
StartFraction x Superscript 4 Baseline y squared Over x y Superscript 6 Baseline EndFraction