Which of the Following Is an Example of Verbal Communication

Which of the following is an example of verbal communication?

A) David nods his head to indicate that he would like a slice of pizza.
B) Edna smiles to show her employee that she is pleased with how the client meeting went.
C) Bernice writes an email to the office manager to request new chairs.
D) Samuel looks his interviewer in the eye to project confidence and reliability.
E) Sharice wears a suit to a formal business dinner to appear professional.