This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Demyelinating disorder among the following is \nSelect and explain. \nA. Multiple sclerosis, B. Typhoid, C. Cholera, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Multiple sclerosis is a autoimmune disorder It leads to demyelination of myelinated nervefibers Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:72,73', 'role': 'assistant'}]