A client on an inpatient psychiatric unit at a community mental health center is pacing up and down the hallway. The client has a history of aggression. Which response by the nurse would be best when approaching the client（）
A. "If you can’t relax, you could go to your room. "
B. "Would you like your antianxiety medication now"
C. "You’re pacing. What’s going on"
D. "Let’s go play a game of pool. "
