While having a snack in the concession area, a child suddenly clutches his throat with both hands. You ask him if he is choking and he frantically nods yes. You activate your facility's emergency action plan (EAP). You identify yourself as a lifeguard and obtain consent from the parents. What should you do next?
A) Perform abdominal thrusts (Heimlich maneuver).
B) Call 911.
C) Perform CPR.
D) Give the child water.