Find Domain of the Following Function $$g ( x ) = \frac { x ^ { 2 } - 49 } { x ^ { 2 } - 6 x - 7 }$$

Multiple Choice

Find domain of the following function. $$g ( x ) = \frac { x ^ { 2 } - 49 } { x ^ { 2 } - 6 x - 7 }$$ ​

A) all real numbers x except x = -49 and x = -1
B) all real numbers x except x = -6 and x = ​7
C) all real numbers x except x = 6 and x = 49
D) all real numbers x except x = 7 and x = -1
E) all real numbers x except x = -7 and x = 1