In Order for a Sport-Specific Exercise to Affect a Specific

In order for a sport-specific exercise to affect a specific, positive change, what is necessary?

A) The exercise movements should be antagonistic to the movement that is the focus of improvement.
B) The trainer should choose slow resistance exercises in order to strengthen the relevant muscles and generate more force.
C) The exercise movements should be as close as possible to the movements performed in the actual sport.
D) Exercise need not be sport-specific to ensure improved performance of a physically fit athlete.