Select the Most Appropriate Comment by the Nurse When a Depressed

Select the most appropriate comment by the nurse when a depressed patient says, "What's the use in going on?"

A) "Are you thinking about suicide?"
B) "I am not sure I understand what you are saying."
C) "Keep your hope alive.It's always darkest just before light."
D) "Tell me more about your activities before you got depressed."