Use the Maximum/minimum Finder on a Graphing Calculator to Determine $$f ( x ) = 0.1 x ^ { 4 } - x ^ { 3 } - 15 x ^ { 2 } + 59 x + 7$$

Use the maximum/minimum finder on a graphing calculator to determine the approximate location of all local extrema.
- $$f ( x ) = 0.1 x ^ { 4 } - x ^ { 3 } - 15 x ^ { 2 } + 59 x + 7$$

A) Approximate local maximum at 1.696; approximate local minima at -6.802 and 12.582
B) Approximate local maximum at 1.673; approximate local minima at -6.875 and 12.57
C) Approximate local maximum at 1.728; approximate local minima at -6.788 and 12.601
D) Approximate local maximum at 1.735; approximate local minima at -6.777 and 12.542