Answer:
The correct option is D.
Explanation:
If two angles occupy the same relative position at each intersection where a straight line crosses two others, then these angles are known as corresponding angles.
If a traversal line intersects two parallel lines, then the two corresponding angles are equal.
In the given figure the corresponding angles are o and x, p and y, q and z, r and w.
Since angle r and angle w are corresponding angles, therefore the correct option is D.