Answer:
Maxim of quantity.
Explanation:
According to Jeff's response to Justin, we can see that Justin is following the maxim of quantity which is when someone tries to be as informative about something without giving irrelevant details.
Justin informs Jeff that he just got the job he has been after and after congratulating him, Justin goes ahead to let him know that he resumes work immediately and then tells him he will see him later.
Here, Justin gives out information that is relevant to what they are discussing and does not stay back for chit chat which would bring about irrelevant talk.
