Reasoning - It describes the occurred from first to last but especially arranges info. step by step order that describes the (Process)<<===. Which leads us back to the question what kara was writing about a complex process with (steps) (hint hint). Which proves to be a chronological order.
Chronological order means describing the events in their order of ocurrence in time. In this case, Kara is describing a process that has several steps. As it is very complex, the best way to write about this process is chronologically. This would allow the readers to perform the actions as they read along, and would decrease their chances of making a mistake.
