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': 'Provisional matrix is made up of - \nSelect and explain. \nA. All, B. Fibrin, C. Fibronectin, D. Fibrinogen', 'role': 'user'}, {'content': 'Answer: A \nExplanation: During wound repair, a provisional wound matrix is formed that contains platelets, fibrinogen .fibrin\xa0and fibronec', 'role': 'assistant'}]