The Son of a Dying Patient Tells the Nurse,"Mother Doesn't

The son of a dying patient tells the nurse,"Mother doesn't really respond any more when I visit.I don't think she knows that I am here." Which response by the nurse is appropriate?

A) "You may need to cut back your visits for now to avoid overtiring your mother."
B) "Withdrawal may sometimes be a normal response when preparing to leave life."
C) "It will be important for you to stimulate your mother as she gets closer to dying."
D) "Many patients don't really know what is going on around them at the end of life."