Which unit is associated with the code range of 2100-2199?

The correct association of the code range 2100-2199 with the Z1 day unit reflects the organizational structure of emergency response and dispatch operations. This specific code range typically identifies a unit within the Atlanta Dispatch system that is likely dedicated to handling certain types of calls or operations relevant to daily occurrences, such as routine patrols or day shifts.

In a dispatch environment, units are assigned code ranges to streamline communication and improve operational efficiency. Each unit is responsible for specific duties or areas, and the designation helps dispatchers quickly identify the appropriate resources for a situation. The Z1 day unit likely encompasses daytime operations, which aligns with the code range provided.

The other choices represent different specialized units that have unique functions or responsibilities, but they do not fall within the specified code range. This context helps clarify why the Z1 day unit is the correct choice for this question.