Find the Domain Of $f ( x ) = \frac { x ^ { 2 } - 16 } { x ^ { 2 } + 4 x - 32 }$

Multiple Choice

Find the domain of $f ( x ) = \frac { x ^ { 2 } - 16 } { x ^ { 2 } + 4 x - 32 }$ .

A) all real numbers except x = 8 and x = -4
B) all real numbers
C) all real numbers except x = 4 and x = -8
D) all real numbers except x = -4, x = 4 and x = -8
E) all real numbers except x = -8