Which of the following is a function carried out by flight planning software?

Flight planning software plays a crucial role in ensuring that flight operations are conducted safely and efficiently, especially in the context of weight and balance calculations. The correct option highlights one of these primary functions, which is calculating weight and balance data accurately.

An accurate calculation of weight and balance is vital before any flight, as it directly impacts the aircraft's performance, stability, and control. The software takes into account various factors such as the aircraft's maximum takeoff weight, fuel load, cargo, and passenger distribution. By ensuring that these calculations are precise, pilots can optimize the aircraft's performance and comply with safety regulations.

In contrast, the other options refer to functions that are either outside the purview of flight planning software or are less relevant to pre-flight preparation. For example, generating weather alerts occurs during the flight phase and typically involves real-time data processing, rather than pre-flight planning. Conducting regular maintenance checks is a separate aspect of aircraft operations, often managed through maintenance tracking systems rather than flight planning software. Providing entertainment options for passengers is not related to flight safety or operational efficiency, making it irrelevant to the primary functions of flight planning tools.