$\text { Find the vertical asymptotes (if any) of the function } f ( x ) = \tan ( 15 x ) \text {. }$

Multiple Choice

$\text { Find the vertical asymptotes (if any) of the function } f ( x ) = \tan ( 15 x ) \text {. }$

A) $x = \frac { k } { 15 } \pi ( k = 0 , \pm 1 , \pm 2 , \ldots )$
B) $x = \frac { 2 k + 1 } { 30 } \pi ( k = 0 , \pm 1 , \pm 2 , \ldots )$
C) $x = \frac { 2 k } { 15 } \pi ( k = 0 , \pm 1 , \pm 2 , \ldots )$
D) $x = \frac { 2 k + 1 } { 15 } \pi ( k = 0 , \pm 1 , \pm 2 , \ldots )$
E) no vertical asymptotes