This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Prenatal Diagnosis, Subject name: Gynaecology & Obstetrics
[{'content': "In triple screening test for Down's syndrome during pregnancy all of the following are included except. \nSelect and explain. \nA. Serum beta hCG, B. Serum oestriol, C. Maternal serum Alfa fetoprotein, D. Acetyl cholinesterase", 'role': 'user'}, {'content': "Answer: D \nExplanation: Triple marker test- done from 16th week onwards Markers in triple test Trend seen in Down's syndrome hCG | UE3 | Alpha feto protein |", 'role': 'assistant'}]