This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lung, Subject name: Medicine
[{'content': 'Which is the most common tumor leading to death in adults? \nSelect and explain. \nA. Lung cancer, B. Prostate cancer, C. Colorectal cancer, D. Leukemia', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans is 'a' i.e. Lung cancer o Lung cancer constitutes upto29% of aU cancer related deaths in males and 26% of all cancer related death in woman.", 'role': 'assistant'}]