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: Medicine
[{'content': 'True about small cell lung cancer \nSelect and explain. \nA. Bone marrow is uncommonly involved, B. Destruction of alveolar cells, C. Peripheral in location, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Small cell carcinoma is central or hilar in location .It is a highly malignant tumour characterised by the destruction of peribronchial tissue and alveoli.By hematogenous route,distant metastasis is very common to bone,brain,opposite lungs,liver,kidney,adrenals Ref Davidson edition23rd pg 614', 'role': 'assistant'}]