This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Features of innate immunity A/E- \nSelect and explain. \nA. Recognizes foreign antigen in blood, B. C reactive protein, C. Complement protein is a pa of innate immune system, D. Includes phagocytes and natural killer cells', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Robbins basic pathology 9th edition page no 105 Heading=the early innate immune response to microbes Innate immunity includes phagocytes like macrophages and neutrophils. Natural killer cells kill viruse infected cells and produce macrophage activating cytokine IFN-gamma.', 'role': 'assistant'}]