You are working in a child care center when you hear a thud and someone yells out that one of the children has collapsed. The scene is safe, but the child appears unresponsive. What should you do next?

A. Interview bystanders using SAM (Signs and symptoms, Allergies, Medications and medical problems).
B. Complete a focused check of the person by checking from head to toe.
C. Assume the person is not responsive and give care by starting CPR.
D. Check for responsiveness by using the shout-tap-shout sequence while checking for breathing, life-threatening bleeding, and other life-threatening conditions.