Taro stated that when someone hits a golf ball with a club, the amount of energy the ball has changes, the amount of energy that the club has changes, and the total energy of the system that includes the ball and the club increases. which best explains taro’s error?

The total energy of the system remains the same and this best explains the error made by Taro. The three options that are given in this question, all says that the amount of energy changes someway or the other. This is why it can be said that Taro made an error in his explanations. I hope the answer helps you.