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': 'The following treatment options are useful in the management of Guillain-Barre Syndrome except - \nSelect and explain. \nA. Intra-venous immunoglobulin, B. Intra-venous methotrexate, C. Plasmapheresis, D. Physical medical rehabilitation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]