This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'The function common to neutrophilis, monocyte & macrophages is- \nSelect and explain. \nA. Immune response, B. Phagocytosis, C. Liberation of histamine, D. Destruction of old crythrocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells). Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg: 138', 'role': 'assistant'}]