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
Pre auricular sulcus is useful for: 
Select and explain. 
A. Determination of age, B. Identification of sex, C. Determination of race, D. Cause of death
B: Identification of sex
Answer: B: Identification of sex 
Explanation: Identification of sex