fourth edition, chapter 7, passage f(sweet spot).
Question 2 asks for choosing the false option. Choice A is the official answer and is correct. However, choice D is also a correct option to choose (i.e. a non-true inference/sentence from the passage). The passage states that one motion jerks all parts of the racket, including the end of its handle, backward; the other motion jerks the end of the handle forward; and one of these predominates unless the ball hits at center of percussion. This clearly makes wrong choice D, which states that the handle will jerk forward after striking the ball unless the ball strikes racket's center of mass.
Am I getting it wrong somewhere?