State the Domain of the Rational Function $$f ( x ) = \frac { x ^ { 2 } + 4 x - 12 } { x ^ { 2 } - 2 x - 8 }$$

Multiple Choice

State the domain of the rational function.
- $$f ( x ) = \frac { x ^ { 2 } + 4 x - 12 } { x ^ { 2 } - 2 x - 8 }$$

A) $( - \infty , - 4 ) \cup ( - 4,2 ) \cup ( 2 , \infty )$
B) $( - \infty , - 2 ) \cup ( - 2,4 ) \cup ( 4 , \infty )$
C) $( - \infty , \infty )$
D) $( - \infty , 4 ) \cup ( 4 , \infty )$