When administering mouth-to-mouth rescue breathing to an adult, you should breathe at the rate of how many breaths per minute?

Correct Answer: Option C — 12

Standard American Heart Association and USCG medical guidelines for adult rescue breathing require a rate of 12 breaths per minute, or one breath every five seconds. This cadence ensures adequate oxygenation while preventing gastric distension, maintaining the necessary physiological balance for a patient in respiratory arrest.