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.
- $$f ( x ) = \frac { 9 x ^ { 2 } - 5 x - 4 } { 3 x ^ { 2 } - 6 x + 7 }$$

A) $y = \frac { 5 } { 6 }$
B) $y = 0$
C) $y = 3$
D) none