An adult client with severe depression was admitted to the psychiatric unit yesterday evening. Although the client ran one year ago, his spouse states that the client no longer runs but sits and watches television most of the day. What is most important for the nurse to include in this client's plan of care for today?
A) Encouraging the client to watch more television
B) Initiating a running program for the client
C) Promoting physical activity within the client's capabilities
D) Allowing the client to remain sedentary to conserve energy