Find the Domain of the Rational Function $$r ( x ) = \frac { x ^ { 2 } + 2 x - 8 } { x ^ { 2 } - 36 }$$

Multiple Choice

Find the domain of the rational function.
- $$r ( x ) = \frac { x ^ { 2 } + 2 x - 8 } { x ^ { 2 } - 36 }$$

A) All real numbers except $- 6$ and 6 .
B) All real numbers except $- 4$ and 2 .
C) All real numbers except $- 2$ and 4 .
D) All real numbers.