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: Unknown
[{'content': 'Hydatidiform mole follow up reliable fest- \nSelect and explain. \nA. BetaHCG, B. US, C. Clinical examination, D. Serum estradiol levels', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans-A i.e., Beta HCG Follow up in a hydatidiform mole:o Serum beta HCG levels measured using radioimmunoassay tests in serum and urine are the most reliable for follow up of cases of hydatidiform mole.It usually regresses to normal in 3 months following the evacuation of hydatidiform mole.Persistent or rising beta HCG levels warrant further evaluation and management.', 'role': 'assistant'}]