The correct answer is C. Non-verbal communication.
Non-verbal communication refers to the form of communication that does not involve speaking. It includes gestures, facial expressions, body language, eye contact, and other non-verbal cues. These forms of communication can convey meaning and messages without the use of words. For example, a smile can indicate happiness or agreement, while a frown may signal displeasure or disagreement.
Non-verbal communication plays a crucial role in conveying emotions, attitudes, and intentions in various interpersonal interactions. It can complement verbal communication or sometimes even contradict it, adding layers of meaning to a message. Understanding non-verbal communication is essential for effective communication in personal, professional, and social settings.