Find Any Horizontal Asymptotes for the Given Function $y = \frac { 18 x } { 9 - x ^ { 2 } }$

Multiple Choice

Find any horizontal asymptotes for the given function. $y = \frac { 18 x } { 9 - x ^ { 2 } }$

A) $y = 2$
B) $y = 18$
C) $y = 9$
D) $y = 0$
E) no horizontal asymptotes