An older adult client with type 2 diabetes mellitus (DM) is hospitalized with an infected ulcer on his right great toe. Which instruction should the nurse emphasize during discharge teaching?

A Nylon socks provide warmth without trapping excess moisture around your feet. B Be sure that you only walk barefoot on soft surfaces, such as fully carpeted rooms. D Open toed shoes allow air to circulate and help prevent toenail fungus growth. C Check the insides and linings of all enclosed shoes before putting the shoes on.