Flight personnel may fly within 12 hours of scuba diving if they ______?

In aviation, safety is of utmost importance, particularly when it comes to regulations regarding flying after scuba diving. The correct choice identifies the necessity for medical evaluation before participating in flight after engaging in scuba activities.

Being cleared by a Flight Surgeon ensures that an individual has been medically assessed and judged to be fit for flying. This is crucial because diving can introduce nitrogen bubbles into the bloodstream, and ascending to high altitudes can exacerbate the risk of decompression sickness, commonly known as "the bends." The Flight Surgeon’s evaluation takes into account the individual's specific dive profile, any symptoms they may be experiencing, and overall health, ensuring that they are not at an increased risk of complications during flight.

Other options, while related to health and wellness, do not provide the necessary medical clearance that is critical in this scenario.