This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Site of diabetic foot ulcer 
Select and explain. 
A. Medial Malleolus, B. Lateral malleolus, C. Heel, D. All
C: Heel
Answer: C: Heel 
Explanation: Ans. is 'c' i.e. Heel "Diabetic ulcers commonly result from decreased protective sensation. Diabetic ulcers are usually found on the plantar surface of the foot over the metatarsal heads or heel." - Sabiston.