Navy weather units are typically maintained with which type of vessels?

Navy weather units are maintained using a variety of vessels, including fleet flagships, aviation units, and both combatant and auxiliary vessels. This diversity is essential because weather units need to operate across different environments and missions, ensuring accurate weather reporting and analysis for naval operations. Each type of vessel plays a role in gathering meteorological data, whether it's from the command and control perspective offered by fleet flagships, the airborne capabilities of aviation units, or the presence and support of combatant and auxiliary vessels. Therefore, the inclusion of all these vessel types contributes to the effective functioning of Navy weather units, making "all of the above" the correct choice.