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: Unknown
[{'content': 'Keivms skin test is used for diagnosis of - \nSelect and explain. \nA. Sarcoidosis, B. Wegeners granulomatosis, C. Graves disease, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Sarcoidosiso Kveim test (Nickerson-kveim or Kveim-Siltzbach test) was a skin test used to detect sarcoidosis.o It is not used know.", 'role': 'assistant'}]