Find the Domain of the Rational Expression $f ( x ) = \frac { - 6 } { 5 x + 2 }$

Find the domain of the rational expression.
- $f ( x ) = \frac { - 6 } { 5 x + 2 }$

A) $\{ x \mid x$ is a real number and $x \neq 0 \}$
B) $\left\{ x \mid x \right.$ is a real number and $\left. x \neq - \frac { 2 } { 5 } \right\}$
C) $\{ x \mid x$ is a real number and $x \neq 6 \}$
D) $\left\{ x \mid x \right.$ is a real number and $\left. x \neq \frac { 2 } { 5 } \right\}$