You are instructing an OEC class on how to assist an ALS provider with defibrillation. Which of the following statements correctly identifies pad placement?

a. "The negative pad is placed on the upper right chest beneath the clavicle on the mid-clavicular line, whereas the positive pad is placed about 2–3 inches beneath the left nipple and 3–4 inches along the anterior axillary line."
b. "The positive pad is placed over the left precordium, and the negative pad is placed on the back between the shoulder blades."
c. "The negative pad is placed on the upper left chest at the clavicle along the anterior axillary line, whereas the positive pad is placed about 4 inches over the left nipple along the mid-clavicular line."
d. "The positive pad is placed about 2–3 inches above the right nipple, and the negative pad is placed between the shoulder blades."

Answer: a