Final answer:
The greatest amount of meaning in communication between two people is conveyed through non-verbal communication, which includes body language, facial expressions, and gestures, as it is symbolic and culturally learned.
Step-by-step explanation:
The largest percentage of message meaning between two people comes from C) Non-verbal communication. In the context of human interactions, body language, facial expressions, and gestures often convey more information than words alone can provide. This form of communication is symbolic and learned through culture. For example, a smile or a thumbs-up can have different meanings in different cultures. It is also important to recognize that verbal communication and written forms such as email communication are important, but they are usually accompanied by nonverbal elements that enrich the meaning of the exchange. Therefore, understanding and interpreting non-verbal cues are crucial for effective and nuanced communication in both personal and professional settings.