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': 'Metastasis to hea are mostly from - \nSelect and explain. \nA. Breast, B. Prostate, C. Ovary, D. All', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Breast o Tumors metastatic to the hea are much more common than primary tumors. o The most common tumors metastatizing to hea are lung and breast. o Other tumors are malignant melanoma, lymphoma and leukemias.", 'role': 'assistant'}]