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
Type of collagen fibres found in the pulp is: 
Select and explain. 
A. Type 1 & Type 4, B. Type 1 & Type 3, C. Type 2 & Type 3, D. Type 2 & Type 4
B: Type 1 & Type 3
Answer: B: Type 1 & Type 3 
Explanation: Pulp has type 1 and type 3 collagen.
Note: All oral hard and soft (gingival) tissues have type 1 (predominantly) and type 3 collagen.