Which is the primary characteristic of nonverbal communication?

The primary characteristic of nonverbal communication is that it encompasses not only body language but also other vocal elements such as tone of voice and inflection. This means that nonverbal communication operates on various levels, effectively conveying feelings and intent without the explicit use of words. It allows individuals to express emotions, reactions, and attitudes through subtle cues such as facial expressions, gestures, posture, and vocal nuances.

In the context of communication, the tone and inflection of someone's voice can drastically change the meaning of what is being said, highlighting the complexity and richness of nonverbal cues. Thus, option B accurately captures the essence of what nonverbal communication entails, recognizing the significant role these vocal elements play alongside bodily movements and expressions in the overall communicative process.