PASCAL 2017 Problem 19

In the diagram, M is the midpoint of YZ,\angle{XMZ}=30^\circ, and \angle{XYZ}=15^\circ. The measure of \angle{XZY} is

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Answer Choices
A. 75^\circ
B. 65^\circ
C. 60^\circ
D. 80^\circ
E. 85^\circ