Find the Vertical Asymptotes, If Any, of the Graph of the Rational

Multiple Choice

Find the vertical asymptotes, if any, of the graph of the rational function.
- $$f ( x ) = \frac { x + 6 } { x ^ { 2 } - 64 }$$

A) $y = 0$
B) $y = - 8 , y = 8$
C) $y = 1$
D) none