The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line________________?

The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line________________?

A. joining the corresponding points
B. perpendicular to line as per A.
C. not possible to determine with these data
D. at 45° to line as per A.
E. none of the above