This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Forensic Medicine
A person met with an accident and suffer from middle cranial fossa fracture There was a bluish purple colour behind mastoid What is your probable diagnosis 
Select and explain. 
A. Battle sign, B. Bezold sign, C. Laceration, D. Aberration
A: Battle sign
Answer: A: Battle sign 
Explanation: ref : narayana reddy