Final answer:
An oropharyngeal airway adjunct is recommended when the patient cannot maintain their airway without assistance.
Step-by-step explanation:
An oropharyngeal airway adjunct is recommended when the patient cannot maintain their airway without assistance.
During general anesthesia, the muscles necessary for breathing can relax, causing a partial or complete blockage of the airway. Placing an oropharyngeal airway adjunct helps to keep the patient's airway open and allows for efficient ventilation.
Therefore, the correct answer is C. When the patient cannot maintain their airway without assistance.