Give an Appropriate Answer $$f ( x ) = \sqrt { x } \text { for } x _ { 0 } = 13$$

Multiple Choice

Give an appropriate answer.
- $$f ( x ) = \sqrt { x } \text { for } x _ { 0 } = 13$$

A) $\frac { \sqrt { 13 } } { 26 }$
B) $\frac { 13 } { 2 }$
C) $\frac { \sqrt { 13 } } { 13 }$
D) Does not exist