$\text { Find } \lim _ { \Delta x \rightarrow 0 } \frac { f ( x + \Delta x ) - f ( x ) } { \Delta x } \text { where } f ( x ) = 4 x - 3 \text {. }$

Multiple Choice

$\text { Find } \lim _ { \Delta x \rightarrow 0 } \frac { f ( x + \Delta x ) - f ( x ) } { \Delta x } \text { where } f ( x ) = 4 x - 3 \text {. }$

A) 1
B) 4
C) $- 3$
D) 0
E) Limit does not exist.