Evaluate the Rational Expression for the Given Value of the Variable

Evaluate the rational expression for the given value of the variable.
- $\frac{x-1}{4 x+6}$ for $x=-2$

A) $\frac{3}{8}$

B) $\frac{3}{20}$

C) $-\frac{3}{5}$

D) $\frac{3}{2}$