This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs, Subject name: Medicine
[{'content': 'This lesions are seen in Behcet syndrome. What is the treatment of this condition? \nSelect and explain. \nA. Prednisolone, B. Thalidomide, C. Infliximab, D. Rituximab', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. B. Thalidomidea. Image shows oral mucosal ulceration, found in Behcet's syndromeb. Thalidomide is approved for treatment of this condition.", 'role': 'assistant'}]