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
[{'content': 'Which of the following is not true about keloid ? \nSelect and explain. \nA. 10-30 year age group is more involved, B. Outgrows wound area, C. Females ate more effected than males, D. Involves flexor surfaces', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]