A Small Ball with Radius 1

Multiple Choice

A small ball with radius 1.00 cm is placed inside a large bowl whose radius is 1.50 m. If the ball is given a small displacement from the bottom of the bowl, the period of the motion is

A) 2.85 s.
B) 2.90 s.
C) 2.95 s.
D) 3.00 s.