An Object Is Attached to a Vertical Spring and Bobs

Multiple Choice

An object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its kinetic energy is a maximum?

A) one-third of the way between A and B
B) at either A or B
C) midway between A and B
D) one-fourth of the way between A and B
E) at none of the above points