Final answer:
The universal sign for choking is (b) pointing at an open hands grasping the neck.
Step-by-step explanation:
The universal sign for choking is pointing at an open hands grasping the neck. When a person is choking, they may instinctively grasp their neck or throat to indicate that they are in distress and need help. This is a common sign recognized by many people, including first responders and healthcare professionals.
In a choking emergency, it's important to act quickly and provide appropriate aid. Performing the Heimlich maneuver or back blows can help dislodge the object blocking the airway and allow the person to breathe again. Immediate medical attention should also be sought to ensure proper treatment.