Which of the following is considered verbal communication?

Verbal communication refers specifically to the use of spoken or written words to convey messages. In the context of the choices provided, the writing on a patient's chart is categorized as verbal communication because it involves written language that conveys important information about the patient’s health and care. This writing is crucial for clear communication among healthcare providers and for documenting patient information.

While tone of voice and body language are important aspects of communication, they are not classified as verbal communication since they do not primarily rely on words. Tone of voice can affect the interpretation of verbal messages but is considered a non-verbal cue. Similarly, body language and facial expressions are forms of non-verbal communication that can express emotions and reactions without using words. Thus, the writing on a patient's chart stands out as the correct representation of verbal communication among the options given.