What benefit do first-class passengers receive during boarding?

First-class passengers receive priority boarding as a key benefit during the boarding process. This allows them to board the aircraft earlier than other passengers, which can make their travel experience more convenient and pleasant. By boarding first, they have extra time to settle into their seats, store their carry-on luggage, and prepare for the flight without the crowds and hustle that often occur as later groups board.

This advantage enhances the overall comfort and luxury that first-class service aims to provide, ensuring that those paying for this service can enjoy a more relaxed and organized boarding process. The other options do not align with the benefits typically provided to first-class passengers; for instance, last boarding calls and boarding with general ticket holders would negate the priority aspect of first-class travel, while free upgrades to business class are not a standard practice.