This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
[{'content': 'Hamartomatous lung tissue is? \nSelect and explain. \nA. Hypoplasia of lung, B. Congenital cyst, C. Lobar sequestration, D. Congenital cystic adenomatoid malformation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Congenital cystic adenomatoid malformation(Ref: Robbins 9th/pg 670; 8th/pg 679)Congenital cystic adenomatoid malformation (CCAM): Hamartomatous Q or dysplastic lung tissue, usually confined to one lobe.', 'role': 'assistant'}]