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
In a patient of cardiopulmonary arrest best way of airway mantainence is: 
Select and explain. 
A. Bag valve mask ventilation., B. Nasotracheal intubation., C. Orotracheal intubation., D. Guedel airway.
C: Orotracheal intubation.
Answer: C: Orotracheal intubation. 
Explanation: OROTRACHEAL INTUBATION
Indicated

Emergency cases(2-3 min)
Cardiopulmonary arrest cases
(Cordiopulmonary Resuciation)
Of Bone in around Nose