This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Most common lung cancer in non-smokers is: \nSelect and explain. \nA. Adenocarcinoma, B. Squamous cell carcinoma, C. Oat cell carcinoma, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Adenocarcinoma accounts for 40% of non-small cell lung cancers. It usually originates in peripheral lung tissue. Most cases of adenocarcinoma are associated with smoking; however, among people who have never smoked ("never-smokers"), adenocarcinoma is the most common form of lung cancer. A subtype of adenocarcinoma, the bronchioloalveolar carcinoma, is more common in female never-smokers, and may have different responses to treatment. REF: ROBBINS pathology 10th edition', 'role': 'assistant'}]