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 is associated with the least moality in a pregnant woman? \nSelect and explain. \nA. Pulmonary hypeension, B. Coarctation of aoa, C. Marfan's syndrome, D. Acyanotic hea disease", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Acyanotic hea disease has a moality rate of Ref: Karla Philip, 3rd Edition, Page 299.', 'role': 'assistant'}]