Find the Slant Asymptote, If Any, of the Graph of the Rational

Multiple Choice

Find the slant asymptote, if any, of the graph of the rational function.
- $$f ( x ) = \frac { x ^ { 2 } + 16 } { x }$$

A) $y = x$
B) $y = x + 16$
C) $x = 0$
D) no slant asymptote