Final answer:
A reportable aviation incident applies to all aircraft, without regard to their weight or whether they are operated by a commercial air operator. It is not always synonymous with an accident.
Step-by-step explanation:
A reportable aviation incident applies to all aircraft, not just commercial air operators. It is not dependent on the maximum takeoff weight (MTOW) of the aircraft. Therefore, option b) applies to all aeroplanes is the correct choice.
For example, if a private aircraft experiences an incident that meets the criteria defined by aviation regulatory authorities, it would be considered a reportable incident and would need to be reported.
It's important to note that a reportable incident is not always synonymous with an accident. Reportable incidents can range from minor occurrences to serious accidents, depending on the event and its impact.