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': 'Chemotherapeutic agents in the EMA-CO regimen include all EXCEPT which of the following? \nSelect and explain. \nA. Etoposide, B. Mithramycin, C. Actinomycin-D, D. Cyclophosphamide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: EMA-CO regimen: * Etoposide * Methotrexate * Actinomycin D * Cyclophosphamide * Oncovin (vincristine).', 'role': 'assistant'}]