This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head & Neck, Subject name: Anatomy
Pre-auricular sulcus is seen in? 
Select and explain. 
A. Mandible, B. Maxilla, C. Skull, D. Pelvis
D: Pelvis
Answer: D: Pelvis 
Explanation: Ans. (d) PelvisRef: Parikh 6/e, p 2.28, Gray's anatomy 39th ed. /1426