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': 'Frie test is done in – \nSelect and explain. \nA. Donovanosis, B. LGV, C. Syphillis, D. Leprosy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Frie's test is an obsolete intradermal test for LGV.", 'role': 'assistant'}]