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: Dental
[{'content': 'Thalidomide is drug of choice for ............. , if two courses of glucocorticoids fail. \nSelect and explain. \nA. Lepra I reaction, B. Lepra II reaction, C. Both Lepra I & II reactions, D. Nerve abscess', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Thalidomide is the DOC for Type II reaction, if 2 courses of glucocorticoids fail.', 'role': 'assistant'}]