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: Forensic Medicine
Feature which differentiates true from aificial bruise is ? 
Select and explain. 
A. Round shape with irregular margins, B. Irregular shape with regular margins, C. Swelling of surrounding area, D. Erythema of surrounding area
A: Round shape with irregular margins
Answer: A: Round shape with irregular margins 
Explanation: Ans. is 'a' i.e., Round shape with irregular margins