This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Twin Pregnancy, Molar Pregnancy, Gestational Trophoblastic disease and contraception in special situations (Sour Grapes!), Subject name: Gynaecology & Obstetrics
[{'content': 'A case of Gestational trophoblastic neoplasia belongs to high risk group if disease develops after \nSelect and explain. \nA. Hydatidiform mole, B. Full term pregnancy, C. Spontaneous, D. Ectopic pregnancy aboion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: WHO SCORING FOR GESTATIONAL TROPHOBLASTIC DISEASE (Score > 6 is high risk) PROGNOSTIC SCORING 0 1 2 4 1. Age <=39 >39 2. Antecedent pregnancy mole aboion term pregnancy 3. Interval (pregnancy and sta of CT) <4 4-6 7-12 >12 4. Hcg <10,000 1000 - 10,000 10,000 - 1 lakh >1 lakh 5. Blood group O or A B or AB 6. Largest tumor size <3 3-5 >5 7. Site of metastasis spleen, kidney GIT Brain, liver 8. No. of metastasis 1-3 4-8 >8 9. Prior chemotherapy 1 drug >=2 drugs', 'role': 'assistant'}]