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
Superior margin of infants larynx as at the level of 
Select and explain. 
A. Cervical spine C1, B. Cervical spine C2, C. Cervical spine C4, D. Cervical spine C6
B: Cervical spine C2
Answer: B: Cervical spine C2 
Explanation: None