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
Most common gestational trophoblastic disease following hydatidiform mole is? 
Select and explain. 
A. Invasive mole, B. Choriocarcinoma, C. Placental site trophoblastic tumor, D. Placental nodule
A: Invasive mole
Answer: A: Invasive mole 
Explanation: Invasive mole REF: COGDT 10' e p. 885 Most common gestational trophoblastic disease is H. mole> invasive mole > choriocarcinoma > placental site trophoblastic tumor