Can i get some help and explanation please. Thank You. This is a three part question.

A.)

Select the correct choice below and, if necessary, fill in the answer boxes within your choice. O A. A local minimum occurs at (Type an ordered pair. Use a comma to separate answers as needed.) The local minimum value(s) is/are (Type an exact answer. Use a comma to separate answers as needed.) O B. There are no local minima.Find the saddle points. Select the correct choice below and, if necessary, fill in the answer box within your choice. G A- A saddle point occurs at (Type an ordered pair. Use a comma to separate answers as needed.) C! B. There are no saddle points. Find all the local maxima, local minima, and saddle points of the function. f(x,y) = - 6x2 -2xy - 2y2- 40x - 14y + 8 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. A local maximum occurs at (Type an ordered pair. Use a comma to separate answers as needed.) The local maximum value(s) is/are (Type an exact answer. Use a comma to separate answers as needed.) O B. There are no local maxima