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': 'Cytokines are secreted in sepsis and Systemic Inflammatory Response Syndrome (SIRS) by: \nSelect and explain. \nA. Neutrophils, B. Adrenal gland, C. Collecting duct, D. Renal cortex', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cytokines are peptide mediators or intercellular messengers which regulate immunological, inflammatory and reparative host responses. They are produced by widely distributed cells like macrophage, monocytes, lymphocytes, platelets, fibroblast, endothelium, stromal cells etc.', 'role': 'assistant'}]