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
Most common lung malfomation - 
Select and explain. 
A. Hypoplasia of lung, B. Congenital cyst, C. Vascular anamolies, D. Lobar sequestration
B: Congenital cyst
Answer: B: Congenital cyst 
Explanation: None