WPF TextBlock Overlaps Ellipse

Question

I am trying to create this in WPF (I realize I could just use an image, but I am trying to learn WPF):

(source)

This is what I have so far but it is

Answer 1

You can do it using a border and a TextBlock. A square border will become a circle if you make its CornerRadius equals half its Width (or Height):

        
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