How do abdominal thrusts help someone who is choking?

Abdominal thrusts, commonly known as the Heimlich maneuver, are specifically designed to relieve choking by creating a quick and forceful upward thrust in the abdominal area. This action generates significant pressure in the diaphragm, which can effectively dislodge an object that is blocking the airway. When performed correctly, the technique forces the air from the lungs upward, which can propel the obstructing object out of the throat, allowing the individual to breathe again. Therefore, option B accurately describes the primary mechanism and purpose of abdominal thrusts in relieving choking incidents.