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: Medicine
[{'content': 'All cause ascending motor paralysis except : \nSelect and explain. \nA. Diabetes mellitus, B. Diphtheria, C. Gullien Barre syndrome, D. Porphyria', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B (Diphtheria): Diptheria is associated with a descending motor paralysis. All other options mentioned in the question give rise to ascending motor paralysis. Impoant causes of descending motor paralysis. Botu I ilium Q. Diphtheria Q Polio These three causes of descending motor paralysis need to be remembered as they are frequently asked and help to answer several questions by exclusion.', 'role': 'assistant'}]