Do freight trains adhere to fixed schedules similar to passenger trains?

Freight trains do not adhere to fixed schedules in the same way passenger trains do. The operations of freight trains are influenced by various factors, including the availability of cargo, the urgency of deliveries, and route conditions. Unlike passenger trains, which typically have set timetables to accommodate riders, freight trains operate on a more flexible schedule. This flexibility allows them to adapt to changing logistical demands, making it possible for them to run at different times based on requirements rather than a fixed timetable.

Consequently, this variability means that freight train arrival and departure times can fluctuate greatly, making option B the correct choice.