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: Pathology
[{'content': 'Most common tumour of hea is - \nSelect and explain. \nA. Myxoma, B. Rhabdomyosarcoma, C. Fibroma, D. Leiomyosarcoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Myxoma o The most frequent cardiac tumor for all age groups is - Metastasis. o The most frequent primary cardiac tumor for age groups is - Myxoma. o The most frequent primary cardiac tumor in infants and children is - Rhabdomyoma.", 'role': 'assistant'}]