This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Which of the following causative factors is not involved in the pathogenesis of Diabetic gangrene? NOT RELATED - MEDICINE \nSelect and explain. \nA. Infection, B. Myelopathy, C. Atherosclerosis, D. Osteoahropathy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Others Are Neuropathy, Microangiopathy, Glycosylation Of Hb And Proteins, Hyperglycemia', 'role': 'assistant'}]