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: Anaesthesia
Mallampati classification is done for 
Select and explain. 
A. Mobility of the neck, B. Size of the airway, C. Oral cavity of patient for intubation, D. Size of endotracheal tube.
C: Oral cavity of patient for intubation
Answer: C: Oral cavity of patient for intubation 
Explanation: Mallampati grading assesses mouth opening.