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
Rose's position is extension at 
Select and explain. 
A. C1 and C2 joint, B. Atlanto - occipital joint, C. C3 and C4, D. C5 and C6
B: Atlanto - occipital joint
Answer: B: Atlanto - occipital joint 
Explanation: None