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': 'Virus infected cell is killed by? \nSelect and explain. \nA. Interferons, B. Macrophages, C. Neutrophils, D. Autolysis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Macrophages are a type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, cancer cells, and virus cells Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg: 137', 'role': 'assistant'}]