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
Infraorbital anesthesia involves which nerve: 
Select and explain. 
A. Anterior superior alveolar nerve, B. Posterior superior alveolar nerve, C. Facial nerve, D. Mandibular nerve
A: Anterior superior alveolar nerve
Answer: A: Anterior superior alveolar nerve 
Explanation: None