This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S., Subject name: Medicine
[{'content': 'All are true about Miller fisher syndrome except: \nSelect and explain. \nA. Ataxia, B. Areflexia, C. Muscle weakness, D. Ophthalmoplegia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. Muscle weaknessMiller Fisher syndrome is characterized by Areflexia without muscle weakness.* Miller Fisher syndrome (MFS) is a variant of GBS.* It accounts for 5% of all cases.* It is strongly associated with antibodies to the ganglioside GQ1b (IgG).* It presents with- Rapidly evolving ataxia- Areflexia of limbs without weakness- Ophthalmoplegia, often with pupillary paralysis', 'role': 'assistant'}]