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: Microbiology
[{'content': 'Color of Granules of Actinomyces is: \nSelect and explain. \nA. Black, B. Yellow, C. Blue, D. White', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Yellow', 'role': 'assistant'}]