Rationalize the Denominator and Simplify $\frac{3-\sqrt{10}}{3+\sqrt{10}}$ A) $\frac{19+6 \sqrt{10}}{-1}$ B) $\frac{-1-6 \sqrt{10}}{19}$ C) $\frac{-1+6 \sqrt{10}}{19}$

Rationalize the denominator and simplify.
- $\frac{3-\sqrt{10}}{3+\sqrt{10}}$

A) $\frac{19+6 \sqrt{10}}{-1}$

B) $\frac{-1-6 \sqrt{10}}{19}$

C) $\frac{-1+6 \sqrt{10}}{19}$

D) $\frac{19-6 \sqrt{10}}{-1}$