The Adult Child of a Critically Ill Patient Has Been

The adult child of a critically ill patient has been keeping vigil,remaining at the bedside constantly for 3 days.Which communication from the nurse would be most appropriate when the child becomes demanding and impatient with the staff providing the parent's care?

A) "I can see that you are feeling short-tempered, which is not unusual under the circumstances. Still, it is not good for your parent to hear you complaining."
B) "It must be difficult for you to be here day after day. What other family members can stay so that you can get a good night's sleep at home?"
C) "It would be best for you to go home for a few days and get some sleep and proper nutrition. Do you have the number here so you can call if you feel the need to?"
D) "You have had little sleep in the last few days. Perhaps you should go home for some rest. You can't be of much help if you are so tired you can't think properly."