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': 'Most common gestational trophoblastic disease following hydatidiform mole is? \nSelect and explain. \nA. Invasive mole, B. Choriocarcinoma, C. Placental site trophoblastic tumor, D. Placental nodule', 'role': 'user'}, {'content': "Answer: A \nExplanation: Invasive mole REF: COGDT 10' e p. 885 Most common gestational trophoblastic disease is H. mole> invasive mole > choriocarcinoma > placental site trophoblastic tumor", 'role': 'assistant'}]