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: Gynaecology & Obstetrics
[{'content': "Maternal serum Alpha Feto Protein (MSAFP) is raised in all the following conditions except : \nSelect and explain. \nA. Spina bifida, B. Multiple pregnancy, C. Omphalocele, D. Down's syndrome", 'role': 'user'}, {'content': "Answer: D \nExplanation: Down's syndrome", 'role': 'assistant'}]