A nurse is teaching a client who has a new diagnosis of diabetes mellitus about foot care. Which of the following instructions should the nurse include in the teaching?

A. Wearing clean cotton socks helps to reduce the risk of infection and provides a comfortable fit for those with diabetes. B. Toenails should be trimmed straight across to prevent ingrown nails, not rounded at the edges. C. Soaking feet daily can lead to skin breakdown, particularly for diabetics with neuropathy. D. Moisturizing lotion should be applied to the feet, but not between the toes, to avoid moisture buildup and fungal infections.