A client, who is on a 30 day commitment to a drug rehabilitation unit, asks the nurse if he can go for a walk on the grounds of the treatment center. When he is told that his privileges do not include walking on the grounds, the client becomes verbally abusive. Which approach should the nurse use?

A) Call a staff member to escort the client to his room
B) Tell the client to talk to his healthcare provider about his privileges
C) Remind the client of the unit rules
D) Ignore the client's inappropriate behavior