A 050-Kg Ball on the End of a Rope Is Moving

Multiple Choice

A 0.50-kg ball on the end of a rope is moving in a vertical circle of radius 3.0 m near the surface of the Earth where the acceleration due to gravity, g, is 9.8 m/s2. Point A is at the top of the circle; C is at the bottom. Points B and D are exactly halfway between A and C.
-Which one of the following statements concerning the tension in the rope is true?

A) The tension is smallest at A.
B) The tension is smallest at C.
C) The tension is smallest at both B and D.
D) The tension is the same at A and C.
E) The tension is the same at A, B, C, and D.