Which of the following is an effective way to non-verbally support a speaker’s message?

A.Use enthusiasm and humor to strengthen the delivering effects.

B.Stare at audience unrelentingly to show the speaker’s enthusiasm.

C.Pace back and forward constantly on the podium to act vigorously.

D.Wear fashionable clothes to attract the audience’s attention.

正确答案：Use enthusiasm and humor to strengthen the delivering effects.