Tennis instruction that reinforces soft,short lobs over the net before attempting to reinforce hard,long,cross-court hits best illustrates the process of

A) shaping.
B) modeling.
C) discrimination.
D) delayed reinforcement.

Shaping involves reinforcing behaviors that approximate or lead up to the desired behavior. In this case, reinforcing soft, short lobs over the net would be the initial approximation of the desired behavior of hard, long, cross-court hits. This process of reinforcing behaviors that are closer and closer to the desired behavior is called shaping, which is the best choice for this scenario. Modeling involves demonstrating behaviors for learners to imitate, discrimination involves responding differently to different stimuli, and delayed reinforcement involves reinforcing a behavior after a delay rather than immediately after the behavior occurs. None of these concepts accurately describes the process of reinforcing soft, short lobs before hard, long, cross-court hits.