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': '20 year old married woman with history of congenital heart disease comes for pre-conceptional counselling. Which of the following is most likely adverse event that she might face in pregnancy \nSelect and explain. \nA. Heart Failure, B. Thromboembolism, C. Hemorrhage, D. Arrhythmia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Adverse cardio\xa0vascular events due to congenital heart disease in pregnancy\n\nArrhythmia (most common)\nHeart failure\nThrombo embolism.', 'role': 'assistant'}]