Find the Domain of the Function $f ( x ) = \frac { x - 1 } { x ^ { 2 } - 4 }$

Multiple Choice

Find the domain of the function. $f ( x ) = \frac { x - 1 } { x ^ { 2 } - 4 }$

A) $( - 4,4 )$
B) $( - \infty , - 2 ) \cup ( - 2,2 ) \cup ( 2 , \infty )$
C) $( 2 , \infty )$
D) $( - \infty , - 2 ) \cup ( 2 , \infty )$
E) none of these