A 20-Kg Solid Disk Rolls Without Slipping on a Horizontal Surface

Multiple Choice

A 2.0-kg solid disk rolls without slipping on a horizontal surface so that its center proceeds to the right with speed 5.0 m/s.
The point A is the uppermost point on the disk and the point B is along the horizontal line that connects the center of the disk to the rim.
-What is the instantaneous speed of point A with respect to the ground?

A) zero m/s
B) 2.5 m/s
C) 5.0 m/s
D) 7.1 m/s
E) 10.0 m/s