You are assisting at an Outdoor Emergency Care course. One of the students asks you how the head tilt-chin lift airway maneuver works to open the airway. Your best response is:

a. "It opens the airway by lifting the tongue from the back of the throat."
b. "It creates an open airway by separating the lips, thereby allowing air to enter."
c. "It stimulates the patient to begin taking deeper breaths, thereby moving air into the lungs."
d. "It opens the airway by relaxing and expanding the size of the throat."

Answer: a