Final answer:
The nonverbal message sent by Antonia's action of arriving late to an accounting department meeting is generally considered negative, suggesting a lack of professionalism and respect for others' time.
Step-by-step explanation:
The question revolves around the nonverbal communication conveyed by Antonia's action of arriving late to a meeting. The statement "Antonia arrives 15 minutes late for the accounting department's monthly meeting. The nonverbal message Antonia is sending is positive.", given the conventional standards of professionalism, is false. Being punctual is an important aspect of professional etiquette, and arriving late, especially without prior notice, typically sends a negative nonverbal message. It suggests a lack of respect for the other members' time, poor time management, or disinterest in the meeting's importance. However, without context, it's not possible to fully understand the message Antonia's lateness might convey; there might be extenuating circumstances. In general, though, punctuality is perceived positively in a business environment.