Who are always seated closest to the exits on a flight?

The option indicating that #1 ABAs (which stands for "Able Bodied Adults") are always seated closest to the exits on a flight is correct because these individuals are designated to assist in the event of an emergency. They are typically located near the exits to ensure they can quickly respond and help evacuate other passengers if necessary. This strategic seating arrangement plays a critical role in safety protocols during a flight, allowing for a rapid response to potential emergencies.

In contrast, while first-class passengers may often have preferable cabin locations, their proximity to exits is not guaranteed nor is it primarily for safety reasons. Flight attendants are trained professionals who may not always sit directly by the exits but are stationed throughout the cabin for service and safety oversight. Flight crew members, including pilots and co-pilots, have designated seating in the cockpit and are not involved in cabin seating assignments that pertain to exit proximity during emergencies.