Find the Derivative of the Function Using the Definition of Derivative

Multiple Choice

Find the derivative of the function using the definition of derivative.
- $$f ( x ) = - 5$$

A) $f ^ { \prime } ( x ) = 0$
B) $f ^ { \prime } ( x ) = 1$
C) $f ^ { \prime } ( x ) = - 5$
D) $f ^ { \prime } ( x ) = - 5 x$