Answer:
C. Most people used the reply all button
Explanation:
This is a problem that can occur in companies due to misuse of e-mail functionalities. What happened in this case was that the employees who responded to the HR director's request email, used the reply button to all contacts forwarded in the director's original email, which ends up creating an email chain unnecessary and can hinder and delay the work of other employees, who need to see emails related to their role.
Therefore, the essential thing is that each employee makes use of the e-mail tool effectively, responding only to the recipient of the e-mail and avoiding sending unnecessary and private messages to contacts not interested in the professional subject addressed in the e-mail.