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': 'HCG level seen in : \nSelect and explain. \nA. Down syndrome, B. DM, C. Multiple pregnancy, D. Ectopic pregnancy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d i.e. Ectopic pregnancy Caught you, I know some of you must have instantly answered "Down\'s Syndrome". But my dear friends read the question very carefully. It says decreased hCG levels and not decreased AFP levels.', 'role': 'assistant'}]