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: Pathology
[{'content': 'Neuroendocrine lesions of lung are \nSelect and explain. \nA. Carcinoid tumor, B. Alveolar carcinoma, C. Hamartoma, D. Asthma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Classification of neuroendocrine lesions.\n\nNon-neoplastic\n\t\nReactive neuroendocrine cell hyperplasia (associated with inflammation or scarring).\nIdiopathic pulmonary neuroendocrine cell hyperplasia.\n\n\n\nBenign - Tumorlets\xa0\nMalignant -\n\nCarcinoid tumor.\xa0\nSmall cell carcinoma of lung.\nLarge cell neuroendocrine carcinoma of the lung.', 'role': 'assistant'}]