A 20-year-old woman has just been diagnosed with Crohn’s disease. She has lost 10 lb (4.5kg) and has cramps and occasional diarrhea. The nurse should include which of the following when doing a nutritional assessment（）
A. Let the client eat as desired during hospitalization.
B. Weigh the client daily.
C. Ask the client to list what she eats during a typical day.
D. Place the client on I＆O status and draw blood for electrolyte levels.