Give an Appropriate Answer $$f ( x ) = 3 x ^ { 2 } \text { for } x _ { 0 } = 9$$

Give an appropriate answer.
- $\text { Evaluate } \lim _ { h \rightarrow \theta } \frac { f \left( x _ { 0 } + h \right) - f \left( x _ { 0 } \right) } { h } \text { for the given } x _ { 0 } \text { and function } f \text {. }$
$$f ( x ) = 3 x ^ { 2 } \text { for } x _ { 0 } = 9$$

A) 54
B) 243
C) 27
D) Does not exist