This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Multiple Sclerosis is \nSelect and explain. \nA. Toxic disorder, B. Infectious disorder, C. Degenerative disorder, D. Demylinating disorder', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (D) Demylinating disorder > Multiple sclerosis (MS) is characterized by a triad of inflammation, demyelination, and gliosis (scarring); the course can be relapsing-remitting or progressive. Lesions of MS are typically disseminated in time and location.', 'role': 'assistant'}]