A client is hospitalized with a diagnosis of chronic renal failure. An arteriovenous fistula was created in his left arm for hemodialysis. When preparing the client for discharge, the nurse should reinforce which dietary instruction（）
A. "Be sure to eat meat at every meal. "
B. "Monitor your fruit intake and eat plenty of bananas. "
C. "Restrict your salt intake. "
D. "Drink plenty of fluids. "
