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: Dental
[{'content': 'A complex interaction among lymphocytes, inflammatory cells and other cellular elements in connective tissue are mediated by a series of low molecular weight proteins called \nSelect and explain. \nA. Bradykinin, B. Histamine, C. Cytokines, D. Kallikrein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]