Three homogeneous objects—(1) a solid sphere, (2) a solid cylinder, and (3) a thin hoop—each have the same mass and radius. They are released from rest at the same height on identical rough inclines and roll without slipping. Which list shows the objects in order of increasing translational speed when they reach the bottom of the incline?
a) 1,2,3
b) 3,1,2
c) 3,2,1
d) 2,1,3