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: Surgery
A mandibular dental infection which exists the
buccal cortical plate above the muscle attachment will cause abscess of 
Select and explain. 
A. Buccal space, B. Masseter space, C. Vestibular sulcus, D. Masticatory space
C: Vestibular sulcus
Answer: C: Vestibular sulcus 
Explanation: None