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: ENT
Pinna develops from: 
Select and explain. 
A. 1st pharyngeal arch, B. 1st and 3rd pharyngeal arch, C. 1st and 2nd pharyngeal arch, D. 2nd pharyngeal arch
C: 1st and 2nd pharyngeal arch
Answer: C: 1st and 2nd pharyngeal arch 
Explanation: Ans. C. 1st and 2nd pharyngeal arch