This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pediatrics
[{'content': 'In Potters syndrome - primary pathology is: \nSelect and explain. \nA. Oligohydramnios, B. Renal agenesis, C. Dysmorphism, D. Limb defects', 'role': 'user'}, {'content': 'Answer: B \nExplanation: b. Renal agenesis(Ref: Nelson 20/e 2513)Components of oligohydramnios complex (Potter syndrome), including low-set ears, micrognathia, flattened nose, limb positioning defects, intrauterine growth restriction & death may result from pulmonary hypoplasia.Bilateral renal agenesis is incompatible with extrauterine life & produces the Potter syndrome.', 'role': 'assistant'}]