Five Hoops Are Each Pivoted at a Point on the Rim

Multiple Choice

Five hoops are each pivoted at a point on the rim and allowed to swing as physical pendulums. The masses and radii are Order the hoops according to the periods of their motions, smallest to largest.

A) 1, 2, 3, 4, 5
B) 5, 4, 3, 2, 1
C) 1, 2, 3, 5, 4
D) 1, 2, 5, 4, 3
E) 5, 4, 1, 2, 3