Which of the following is an example of using nonverbal communication to regulate verbal communication

I imagine this is the question you are asking.

Which of the following is an example of using nonverbal communication to regulate verbal communication? a. holding up a hand to indicate you do not wish to be interrupted or to stop communication b. smiling while recounting an experience you found amusing c. crossing fingers to indicate lying d. clapping after a performance, yelling/cheering during a sporting event

The correct answer is A.