What is defined as communication expressed through posture, facial expression, actions, or physical behavior?

The correct choice is non-verbal communication, which encompasses all forms of communication that do not use words. This includes posture, facial expressions, actions, and other physical behaviors that convey messages and emotions. Non-verbal communication plays a critical role in how individuals express themselves and understand the intent and feelings of others. It can complement, contradict, or even enhance verbal communication, providing additional context to the spoken word.

In contrast, verbal communication relies exclusively on spoken words to convey messages. Written communication pertains to the organized presentation of language in written format, such as emails, letters, or texts. Visual communication involves conveying ideas and information through visual elements like images, graphs, or charts. While all these forms of communication are valuable, non-verbal communication is uniquely significant as it can often communicate more than words alone could express, particularly in conveying emotions and social cues.