Determine the Domain Of $f ( x ) = \frac { x ^ { 2 } + 11 x + 30 } { x ^ { 3 } + 6 x ^ { 2 } - x - 6 }$

Multiple Choice

Determine the domain of $f ( x ) = \frac { x ^ { 2 } + 11 x + 30 } { x ^ { 3 } + 6 x ^ { 2 } - x - 6 }$ .

A) all real numbers except x = -6 and x = -5
B) all real numbers except x = -1, x = 1, x = -6 and x = -5
C) all real numbers except x = 6
D) all real numbers except x = -1, x = 1 and x = -6
E) all real numbers