Answer:
C. making a hand movement for the listener to come towards the speaker
Step-by-step explanation:
Body gestures such as making a hand movement for the listener to come towards the speaker are often used by good speakers to help make their points and to keep the audience engaged. Tapping on the podium with the fist can be perceived as aggressive or confrontational and may not be an effective way to engage the audience. Good speakers often use positive and inviting body gestures to keep their audience engaged.