When performing abdominal thrusts $($Heimlich Maneuver$)$ on a choking victim...

A$)O$ give one full thrust and then stop if you do not expel the object.

B$)$ thrust downward from the shoulder area to expel the object.

C$)$ grasp your fist with your other hand and thrust inward and upward into the victim's abdomen.

D$)$ O lay the victim down on his$/$her back and try and keep them calm while they're choking.