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: Pediatrics
[{'content': "Which heart diseases are most commonly associated with rubella infection – \nSelect and explain. \nA. PDA, B. VSD, C. ASD, D. Eisemenger's syndrome", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Patent ductus arteriosus is the most common congenital heart disease associated with rubella, followed by pulmonary artery stenosis.\nHeart disease in congenital Rubella → PDA > PS > VSD > ASD.', 'role': 'assistant'}]