Find the Domain of the Composite Function F $f ^ { \circ } g$

Multiple Choice

Find the domain of the composite function f $f ^ { \circ } g$
- $$f ( x ) = \frac { - 2 } { x + 7 } ; \quad g ( x ) = \frac { - 14 } { x }$$

A) $\{ x \mid x \neq 0 , x \neq - 7 , x \neq 2 \}$
B) $\{ x \mid x$ is any real number $\}$
C) $\{ x \mid x \neq 0 , x \neq - 7 \}$
D) $\{ x \mid x \neq 0 , x \neq 2 \}$