Which of the following nonverbal actions might be used to regulate our participation in conversation? Select one:A. You make an eye contact and open your mouth to let someone know you want to speak.B. You smile when you say hello to let the person know you are happy to see him.C. You slam your hand down on the table as you express your anger.D. As you are talking about a new haircut, you pull on your hair and make a scissors motion with your fingers.