A 68-year-old male client has been hospitalized repeatedly for chronic obstructive pulmonary disease (COPD). During this latest admission, he has refused to participate in his self-care. Every time the nurse approaches him, the client states, "I just want to die. I’m no good to anyone anymore. " The nurse realizes that he’s experiencing（）
A. self-actualization.
B. confabulation.
C. reaction formation.
D. grief.
