Evaluate the Function at the Indicated Value $\frac { f ( x + h ) - f ( x ) } { h }$

Multiple Choice

Evaluate the function at the indicated value.
-Find $\frac { f ( x + h ) - f ( x ) } { h }$ when $f ( x ) = 4 x - 3$

A) $4 + \frac { - 6 } { h }$
B) $4 + \frac { 8 ( x - 3 ) } { h }$
C) 0
D) 4