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: Unknown
Which of the following is not true about keloid ? 
Select and explain. 
A. 10-30 year age group is more involved, B. Outgrows wound area, C. Females ate more effected than males, D. Involves flexor surfaces
D: Involves flexor surfaces
Answer: D: Involves flexor surfaces 
Explanation: None