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
Blue color of the bruise is due to - 
Select and explain. 
A. Hemosiderin, B. Deoxyhemoglobin, C. Bilirubin, D. Hematoidin
D: Hematoidin
Answer: D: Hematoidin 
Explanation: The synopsis of forensic medicine &toxicologyDr k.s. narayan reddy ;28th edition; pg.no.108; Blue colour of the bruise which develops in 5-6 days is due to haemtoidin .