This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrics And Gynaecology, Subject name: Radiology
[{'content': 'Snowstorm appearance on ultrasonography is seen in- \nSelect and explain. \nA. Hydatid cyst, B. Pyogenic liver abscess, C. Ectopic pregnancy, D. Molar pregnancy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., Molar pregnancy * "Snow storm appearance" or "bunch of grapes appearance" is characteristic of H. mole.', 'role': 'assistant'}]