In the diagram, \triangle{XYZ} is isosceles with XY=XZ. Also, point W is on XZ so that XW=WY=YZ. The measure of \angle{XYW} is

Answer Choices
A. 18^\circ
B. 30^\circ
C. 45^\circ
D. 36^\circ
E. 60^\circ
In the diagram, \triangle{XYZ} is isosceles with XY=XZ. Also, point W is on XZ so that XW=WY=YZ. The measure of \angle{XYW} is
Answer Choices
A. 18^\circ
B. 30^\circ
C. 45^\circ
D. 36^\circ
E. 60^\circ