Susan Meets Bryant on an Online Dating Web Site

Susan meets Bryant on an online dating web site. They e-mail back and forth until Susan feels comfortable with Bryant; she especially enjoys his use of emoticons. She agrees to speak with him on the phone, and she finds herself liking him more and more. He is soft-spoken, quick to laugh, and gives her plenty of time to state her opinions without interrupting. Even though Susan and Bryant have yet to meet, they have discovered which principle of nonverbal communication?

A) Nonverbal communication is usually trusted over verbal communication.
B) Nonverbal communication is present in most communication contexts.
C) Nonverbal communication metacommunicates.
D) Nonverbal communication serves multiple functions.