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': 'Scar in lung tissue may get transformef into \nSelect and explain. \nA. Adenocarcinoma, B. Oat cell carcinoma, C. Squamous cell carcinoma, D. Columnar cell carcinoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Impoant points about squamous cell carcinoma of lung MC type of lung cancer in smokers MC type in males Usually central in location Intracellular bridges or junction is very specific Hyercalcemia due to PTHrP is the NC paraneoplastic syndrome. Refer robbindp716-717f', 'role': 'assistant'}]