How old must a passenger be to occupy an exit row seat?

The correct age requirement for a passenger to occupy an exit row seat is 15 years old. This regulation is in place because passengers seated in exit rows must be able to assist in the event of an emergency evacuation, and the age threshold is determined to ensure that they have the maturity and capability to perform such responsibilities.

Younger children, typically below this age, may not have the physical, mental, or emotional maturity necessary to handle the situation should an emergency arise. Therefore, airlines adhere to this regulation to enhance safety for all passengers on board.

In contrast, options suggesting 12 years, 18 years, or 21 years do not align with the established guidelines for exit row seating requirements as defined by the Federal Aviation Administration (FAA) regulations.