Determine the Vertical Asymptote(s) of the Graph of the Function $$f ( x ) = \frac { x } { x ^ { 2 } + 81 }$$

Multiple Choice

Determine the vertical asymptote(s) of the graph of the function.
- $$f ( x ) = \frac { x } { x ^ { 2 } + 81 }$$

A) $x = 9$ and $x = - 9$
B) $x = 9$ and $x = 0$
C) $x = 9$
D) None