This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gestational Trophoblastic Disease, Subject name: Gynaecology & Obstetrics
[{'content': 'A female with H/O trophoblastic has ____% chances of developing trophoblastic disease in next pregnancy: \nSelect and explain. \nA. 2%, B. 5%, C. 8-12%, D. 15-20%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a, i.e. 2%Ref. Williams 24/e, p 404, Dutta Obs. 8/e, p 226Friends: Remember both the values-specifically-risk of recurrence of trophoblastic disease in future pregnancies is 2% range is 1-4%', 'role': 'assistant'}]