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: Pharmacology
[{'content': 'Prostaglandin derivatives are used in following conditions, except: \nSelect and explain. \nA. Cervical ripening, B. As an aboifacient, C. As an aboifacient, D. As an aboifacient', 'role': 'user'}, {'content': 'Answer: D \nExplanation: As an aboifacient', 'role': 'assistant'}]