How many turning points are in the graph of the polynomial function?
A. 4 turning points
B. 5 turning points
C. 6 turning points
D. 7 turning points
![How many turning points are in the graph of the polynomial function A 4 turning points B 5 turning points C 6 turning points D 7 turning points class=](https://us-static.z-dn.net/files/d15/0381791d87eac52422c82a4da30d51ef.jpg)