A client with diabetes is explaining to the nurse how he cares for his feet at home. The nurse could judge from which of the following statements that the client needs further instruction on how to care for his feet properly
A．"I inspect my feet once a week for cuts and redness. "
B．"I am not allowed to use a heating pad on my feet. "
C．"It is important to dry my feet carefully after my bath. "
D．"I should not go barefoot, even in my home. "