This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Tensile strength of wound after laparoscopic cholecytectomy in a 30 years old Woman depends upon 
Select and explain. 
A. Replacement of type 3 collagen, B. Extensive crosslinking of procollagen, C. Macrophage activity\/invasion, D. Granulation tissue
B: Extensive crosslinking of procollagen
Answer: B: Extensive crosslinking of procollagen 
Explanation: "Covalent cross linking of the lysine residues provides tensile strength. The extent and type of cross linking vary from tissue to tissue. In tissues such as tendons, in which tensile strength is crucial, collagen cross linking is extremely high." Sabiston 26th edition Pg: 139