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': 'Sutcular fluid does not perform one of the following\nfunctions: \nSelect and explain. \nA. Contains plasma proteins which may improve adhesion, B. Possesses antimicrobial properties, C. Exerts antibody activity, D. Provides nutrition to junctional epithelium via diffusion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]