Determine Which of the Rational Functions Given Below Has the Following

Multiple Choice

Determine which of the rational functions given below has the following feature(s) .
-The horizontal asymptote is $\mathrm { y } = 4$

A) $f ( x ) = \frac { 4 x ^ { 2 } - 1 } { x + 9 }$

B) $f ( x ) = \frac { 4 } { x - 4 }$

C) $f ( x ) = \frac { x + 4 } { x + 9 }$

D) $f ( x ) = \frac { 4 x - 1 } { x + 9 }$