Use Graphical Methods to Find Any Turning Points of the Graph

Multiple Choice

Use graphical methods to find any turning points of the graph of the function.
- $$f ( x ) = \frac { x ^ { 2 } } { x ^ { 2 } + 3 }$$

A) (0, 0) and (3, 0.75)
B) No turning points
C) (3, 0.75)
D) (0, 0)