Determine the Maximum Possible Number of Turning Points for the Graph

Multiple Choice

Determine the maximum possible number of turning points for the graph of the function.
- $$f ( x ) = ( 7 x - 6 ) ^ { 5 } \left( x ^ { 5 } - 1 \right) ( x + 1 )$$

A) 10
B) 11
C) 77
D) 5