Give the Equation of the Oblique Asymptote, If Any, of the Function

Multiple Choice

Give the equation of the oblique asymptote, if any, of the function.
- $$f ( x ) = \frac { x ^ { 2 } - 4 x + 7 } { x + 2 }$$

A) $y = x - 6$
B) $x = y + 4$
C) $y = x + 11$
D) no oblique asymptote