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': 'Raised beta-HCG levels are seen in:a) DMb) Preeclampsiac) Ectopic pregnancyd) Rh. Incompatibilitye) Down syndrome \nSelect and explain. \nA. ab, B. bc, C. de, D. bd', 'role': 'user'}, {'content': 'Answer: C \nExplanation: hCG levels:\nCaught 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.\nhCG levels:', 'role': 'assistant'}]