This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Advanced Fetal Ultrasonography and Therapy, Subject name: Radiology
[{'content': 'Nuchal translucency is used in - \nSelect and explain. \nA. Head scan, B. MRI neck, C. ANC USG, D. Anthropometry', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., ANC USGo Nuchal translucency is used for screening of down syndrome in antenatal USG.", 'role': 'assistant'}]