The Centre of Percussion of a Racket Is Broadly Defined

Multiple Choice

The centre of percussion of a racket is broadly defined as?

A) The point on the racket that has the most vibration at impact with a ball
B) The point that is the 'sweet spot' in a racket
C) The point that, if contacted with the ball, makes the most effective shot
D) The point that is often in the handle of the racket
E) An imaginary point that is outside of the racket