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: Radiology
[{'content': "B/L symmetrical Hilar lymphnode seen in: \nSelect and explain. \nA. Sarcoidosis, B. Tuberculosis, C. Leprosy, D. Wegener's granulomatosis", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Sarcoidosis', 'role': 'assistant'}]