Which bundle includes an extra 5' tail that is not secured to the remainder of the bundle?

The correct choice pertains to the working bundle, which is specifically designed for active firefighting situations. This bundle includes an extra 5-foot length of hose that is left unsecured from the main body of the bundle. The purpose of this extra tail is to give firefighters increased flexibility and reach when deploying the hose, allowing them to maneuver more effectively around obstacles or into hard-to-reach areas during an emergency.

In contrast, other bundles such as the high-rise bundle, supply bundle, and attack bundle have different configurations and intended uses. The high-rise bundle is typically designed for vertical deployment and does not include this unsecured length; instead, it is tailored for use in high structures where hose management in tight spaces is crucial. The supply bundle, focused on supplying water to fire apparatus, maintains a secure configuration to ensure efficient connection to hydrants or other water sources. The attack bundle, which is meant for direct application on the fire, is usually constructed in a way that prioritizes quick deployment without excess unsecured length that could become a hindrance during firefighting operations.