The Nurse Enters the Client's Room and Finds the Client

The nurse enters the client's room and finds the client anxiously pacing the floor. The client begins shouting at the nurse, Get out of my room! The best intervention by the nurse would be to

A) approach the client and ask, What's wrong?
B) call for help and say, Calm down.
C) turn and walk away from the room without saying anything.
D) stand at the doorway and say, You seem upset.