<prompt> During a pre-anaesthetic evaluation of a patient with neck extended, mouth open, and tongue protruded, the patients uvula is not visible. His airway should be classified as which of the followingMallampati 1Mallampati 2Mallampati 3None of the above  <response>: Since this patients uvula is not visible, his airway is classed as Mallampati 3, suggesting a difficult intubation. 