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

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... 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.
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