Find the Domain Of $f ( x ) = \frac { x - 6 } { x ^ { 2 } - 36 }$

Multiple Choice

Find the domain of $f ( x ) = \frac { x - 6 } { x ^ { 2 } - 36 }$ .

A) all real numbers except $x = 6 \text { and } x = - 6$
B) all real numbers except $x = 6$
C) all real numbers except $x = - 6$
D) all real numbers except $x = 36$
E) all real numbers