Calculus Contour Map question can't figure out please help 10 pts?

Question

I need to know what if the following points are saddles, min, max, or none for points A,B,C,D. The map is at this website http://math.asu.edu/~surgent/MML/Topomap.gif I put A and B as saddles, C as min, and D as max. but it says I am wrong (I could have a couple right but I need all four to be correct) please help.

Answer 1

Favorite Answer

C is "none". It is just a point on the side of a hill, not a max min or saddle.

The others are right.