This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Eisenmenger syndrome-True are All except ? \nSelect and explain. \nA. Pulmonary veins are not distended, B. RV & LV walls come back to normal size, C. Dilatation of central pulmonary aery, D. Peripheral pruning of pulmonary aeries', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Eisenmenger syndrome right ventricle has concentric hyperophy. Ref : Ghai essential of pediatrics, eighth edition, p.no:428', 'role': 'assistant'}]