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: Surgery
In the healing of a clean wound the maximum immediate strength of the wound is reached by - 
Select and explain. 
A. 2 - 3 days, B. 4 - 7 days, C. 10 - 12 days, D. 13 - 18 days
D: 13 - 18 days
Answer: D: 13 - 18 days 
Explanation: Ans. is 'd' i.e., 13-18 days Wound strength increases rapidly upto 4 weeks