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: Pediatrics
[{'content': 'Most common cause of abdominal swelling in newborn \nSelect and explain. \nA. Multicystic dysplastic kidney, B. Autosomal dominant PCKD, C. Autosomal recessive PCKD, D. Horseshoe Kidney', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It is dysplastic , non functional kidney replaced by cysts.\nIt is usually U/L : B/L is not compatible with life.', 'role': 'assistant'}]