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': 'Type of collagen fibres found in the pulp is: \nSelect and explain. \nA. Type 1 & Type 4, B. Type 1 & Type 3, C. Type 2 & Type 3, D. Type 2 & Type 4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pulp has type 1 and type 3 collagen.\nNote: All oral hard and soft (gingival) tissues have type 1 (predominantly) and type 3 collagen.', 'role': 'assistant'}]