A client with diabetes is explaining to the nurse how he cares for the feet at home. Which statement indicates the client needs further instruction on how to care for the feet properly?

a) "It is important to dry my feet carefully after my bath."
b) "I should not go barefoot, even in my home."
c) "I inspect my feet once a week for cuts and redness."
d) "I am not allowed to use a heating pad on my feet."