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': 'Most common type of carcinoma of lung is \nSelect and explain. \nA. Small cell carcinoma, B. Adenocarcinoma, C. Squamous cell carcinoma, D. Large cell carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Lung tumors\nIn children\xa0\n\nMost common lung tumor is metastasis.\nMost common benign tumor of the pediatric lung (including both infants and children) is inflammatory myofibroblastic tumor.\nMost common benign lung tumor in infants are pleuropulmonary blastoma.\nMost common primary malignant tumor of the pediatric lung is bronchial carcinoid.\n\nAdults\n\nMost common lung tumor is metastasis.\nMost common benign tumor is pulmonary hamartoma.\nMost common primary malignant tumor in\n\ti. India - Squamous cell carcinoma.\n\tii. World - Adenocarcinoma.', 'role': 'assistant'}]