MNOP is a rhombus in which the diagonal OM is produced to Q. If\[\angle \mathbf{POQ}=\text{ }\mathbf{140}{}^\circ \], then which one is correct?

MNOP is a rhombus in which the diagonal OM is produced to Q. If\[\angl

1.	MNOP is a rhombus in which the diagonal OM is produced to Q. If\[\angle \mathbf{POQ}=\text{ }\mathbf{140}{}^\circ \], then which one is correct?
A.	\[x=60{}^\circ \]
B.	\[y=50{}^\circ \]
C.	\[z=50{}^\circ \]
D.	All of the above
E.	None of these
Answer» D. All of the above