A 65-year-old man with long-standing type 2 diabetes has diminished vibration sense and loss of protective sensation in both feet. According to Canadian diabetic foot care guidelines, what is the most appropriate preventive intervention?AAdvise barefoot walking to toughen skinBAnnual foot examination onlyCRegular foot inspection, patient education, appropriate footwear and referral to foot care services if neededDProphylactic systemic antibioticsENo action is required unless ulcers appearCheck my answer