An Older Client with Alzheimer's Disease Is Agitated and Angry

An older client with Alzheimer's disease is agitated and angry. The most appropriate nursing action to calm the client is to:

A) Encourage the client to join a group activity in the day room.
B) Restrain the client using soft restraints until the client calms down.
C) Isolate the client in a room until the client is less agitated.
D) Turn down the volume of the radio.