Which of the following is a type of nonverbal communication important during public speaking?

Body movement is a crucial element of nonverbal communication during public speaking for several reasons. It helps convey emotion and engagement, reinforces the message being delivered, and can capture the audience's attention more effectively than words alone. Effective use of gestures, posture, and facial expressions can enhance the speaker's credibility and connection with the audience, making it easier for listeners to relate to the speaker and the message.

When speakers use body movement thoughtfully, it can also aid in emphasizing key points or transitions in their speech, providing a visual cue that can enhance audience retention of the information. The alignment of body language with verbal content creates a more cohesive and persuasive presentation.

While written content, voice modulation, and presentation slides also play significant roles in effective public speaking, they do not fall under the category of nonverbal communication. Written content delivers explicit ideas, voice modulation pertains to vocal qualities like pitch and tone, and presentation slides serve as visual aids, but they do not inherently involve the speaker's physical expression or movement.