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
Cervical spine protection is done under which step of ABCDE of trauma care? 
Select and explain. 
A. A, B. B, C. C, D. D
A: A
Answer: A: A 
Explanation: Measures to ensure a patent airway should be instituted while protecting the cervical spine. Initially, the chin lift or jaw thrust maneuvres are recommended to achieve this task. A normal neurological examination should not exclude a cervical spine injury.
Protection of the cervical spine should be maintained throughout, either by stabilisation equipment or by a member of the trauma team, when it is required that the patient be moved or turned.