This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to twirl a baton
Learn baton terminology.
A baton has three parts: the ball, shaft, and tip. The ball is the bigger end of the baton.

Choose from:
[A]. The shaft is the baton's metal or plastic middle section. The tip is the baton's smaller end.;
[B]. It is used to rotate your body weight forward and backward. The shaft is the portion of your body facing forward or inward.;
[C]. The shaft is the part with the barrel and tip. The shaft is what you place the barrel on.;
[D]. It contains a small rest of the baton, which you will use for movements of the baton. The shaft is the tip of the baton's shaft, with a metal fore-part at the bottom and above the ball.;
The answer is:
[A].