The figure shows a quadrilateral PQRS having equal sides and opposite sides parallel. The diagonals PR and QS intersect perpendicularly at O, Which of the following statements cannot be correct
-
A.
|PO|=|RO| -
B.
PQR is an equilateral triangle -
C.
PQRX is a parallelogram -
D.
There are two lines of symmetry