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: Anatomy
Maxillary prominence develops in 
Select and explain. 
A. 1st pharyngeal arch, B. 1st pharyngeal groove, C. 1st pharyngeal pouch, D. 1st pharyngeal membrane
A: 1st pharyngeal arch
Answer: A: 1st pharyngeal arch 
Explanation: None