This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanical Injuries, Subject name: Forensic Medicine
What is the age of abrasion? 
Select and explain. 
A. 12-24 hrs, B. 1-2 day, C. 2-3 day, D. > 7 days
D: > 7 days
Answer: D: > 7 days 
Explanation: Scab has amost completely peeled off which indicates age >7 days Healing of Abrasion Fresh: Reddish in colour By 12- 24 hrs: Reddish Scab is formed (the scab formation occurs due to drying of superficial blood and lymph) By 2-3 days: Reddish brown scab By 4-7 days:Dark brown scab is formed,Epithelium grows under the scab and eventuallyScab stas falling off from margins After 7 days: Scab falls off leaving a depigmented area; later becomes pigmented.