This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Anatomy
[{'content': 'Earliest lesion seen in asbestosis is \nSelect and explain. \nA. A. Pleura plaques, B. B. Hilar lymphadenopathay, C. C. Adenoma lung, D. D. Mesothelioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It is most common manifestation of asbestos exposure composed of plaques of dense collagen containing calcium. They are usually asymptomatic and develop on anterior and posteriolateral pas of parietal pleura and over the diaphragm Refer robbins 9/e', 'role': 'assistant'}]