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': 'Myocardial abscess is most common in acute endocarditis caused by- \nSelect and explain. \nA. Streptococcus viridans, B. Enterococci, C. Streptococcus pneumoniae, D. Staphylococcus aureus', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is `d' i.e., Staphylococcus aureus", 'role': 'assistant'}]