Answer: The correct answer is tap his shoulder and ask loudly, "Are you okay?"
Step-by-step explanation:
Before giving Cardiopulmonary Resuscitation (CPR), you should follow these steps:
1. Have a quick look at the scene looking for possible risks.
2. Shake the unconscious person's shoulder gently and shout: "Are you okay?" or "Are you alright?" In this way you ensure that the person needs help. By doing this, you are checking for a response.
3. Call 911 for assistance.
4. Check for breathing. Look for sounds or chest movements. If there's no breathing, start CPR.