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: Medicine
[{'content': "Which congenital heart disease is associated with pre excitation ? \nSelect and explain. \nA. Atrial Septal Defect, B. Bicuspid Aortic Valve, C. Ebstein's Anomaly, D. Patent Ductus Arteriosus", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]