During a through flight, what may happen to the passengers at enroute stops?

In the context of a through flight, passengers typically have the option to either remain aboard the aircraft during enroute stops or disembark, depending on the airline's policy and the nature of the stop. If the stop is a brief layover, passengers may stay on the plane while it refuels or undergoes minor maintenance. However, for longer layovers or if the aircraft requires cleaning and preparation for the next leg of the journey, they might be asked to exit the aircraft briefly. The flexibility inherent in this option caters to the various operational needs and passenger circumstances, which is why it is the correct answer.