This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Montenegro test is done for \nSelect and explain. \nA. Hydatid disease, B. TAENIASIS, C. Filariasis, D. kala-azar', 'role': 'user'}, {'content': 'Answer: D \nExplanation: This test is based on skin reaction . Leishmanin is a preparation of 106 per ml washed promastigotes of leishmania, suspended in 0.5 per cent phenol saline or mehiolate. Ref: page No:334; park 25th Edition', 'role': 'assistant'}]