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': 'Wound strength of healing is provided by \nSelect and explain. \nA. Collagen fibres, B. Blood supply, C. Growth factors, D. Hormones', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Type 1 collagen fibres have high tensile strength.', 'role': 'assistant'}]