Which category of communication includes tone of voice, appearance, body language, and facial expression?
tone of voice, appearance, body language, and facial expression are all part of communication that takes place without words.

non-verbal communication.

Explanation: Nonverbal communication provides the receiver with much more information about the speaker than verbal communication does.

what are the options

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.