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
[{'content': 'Which of the following cannot be used for MTP in a patient with bronchial asthma : \nSelect and explain. \nA. Prostaglandin, B. Oxytocin, C. Mifepristone, D. Ethacrydine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Prostaglandin', 'role': 'assistant'}]