Final answer:
To perform abdominal thrusts, correctly place the thumb side of the fist just above the navel but below the ribs, which corresponds to option c.
Step-by-step explanation:
To perform abdominal thrusts on a choking child, the correct hand placement is to put the thumb side of the fist just above the navel (belly button) but below the ribs. This option is found in c, which is the correct choice. This technique is better known as the Heimlich maneuver, and it is an emergency procedure to help clear the airway of a person who is choking. The fist should be placed with the thumb side against the abdomen, and the other hand should cover the fist. Then, a series of upward thrusts are made to increase pressure in the abdomen and force the lodged object out of the airway.