Answer:
(A)Quadrilateral WXYZ is rotated 90º counterclockwise about the origin
Step-by-step explanation:
When a point (x,y) is rotated 90 degrees counterclockwise about the origin, the transformation rule is:

Rotating W(3,6) 90 degrees counterclockwise about the origin, we have the image W'(-6,3).
Therefore, Quadrilateral WXYZ is rotated 90º counterclockwise about the origin to obtain W'X'Y'Z'.
The correct choice is A.