Finding Rel. Max, Min, and Saddle Points on Levelset

[Loppyfoot]

Homework Statement

The diagram above represents a collection of level sets for a certain function, where the outer-most level is at the lowest height.

What are points A-E? relative min, relative max, saddle point, or not a critical point

The Attempt at a Solution

I have tried multiple times to get this question right, but I keep failing.

I know that point B is a relative Maximum.
What would C, D , and A be?

Thanks for your help!

 

[Loppyfoot]

Does Anyone have any Ideas? I don't think its that difficult of a question for some, but its just a little bit confusing.