What type of GPS tracking system stores data throughout the day and downloads it at night?

The correct choice is the type of GPS tracking system that is known to store data throughout the day and downloads it at night, which is the passive system. This system does not provide real-time tracking or updates; instead, it records the location data continuously and then transmits that information at a specified time, typically during the night when the monitored individual is less likely to be moving around.

This method allows for a complete record of the individual's movements during the day without the need for constant communication with the monitoring agency. Passive tracking is often utilized in scenarios where continuous monitoring is not necessary, or real-time data is not critical.

Active tracking, on the other hand, provides real-time updates and continuously transmits data while the monitored individual is on the move, while hybrid systems combine elements of both active and passive tracking. Static systems typically refer to fixed positioning without the capability for mobility tracking.