Final answer:
When inserting an oropharyngeal airway, you need to rotate the airway 180° so that the tip is pointing down into the patient's pharynx.
Step-by-step explanation:
The correct option is B. 180°.
When inserting an oropharyngeal airway, you need to rotate the airway 180° so that the tip is pointing down into the patient's pharynx. This rotation helps ensure that the airway is properly aligned and inserted into the correct position.