Which ship's primary mission is to dock, transport, and launch the Navy's Landing Craft and other amphibious craft and vehicles?

The ship designated with the primary mission of docking, transporting, and launching the Navy's Landing Craft and other amphibious craft and vehicles is the Landing Ship Dock (LSD). The LSD is specifically designed to support amphibious operations, featuring a well deck that allows for the launching and recovery of various types of amphibious vehicles and crafts, including landing craft air cushion (LCAC) and conventional landing craft. This capability is crucial for conducting operations where transporting troops and supplies directly to shore is necessary, particularly in less accessible environments.

In contrast, while the Landing Platform Dock (LPD) also supports amphibious operations, it has a different focus, as it is equipped for command and support with facilities for embarked troops. Other options like HSC and TAKE do not align with the specific mission of launching amphibious craft, as HSC is typically associated with Helicopter Sea Combat and TAKE is not a widely recognized naval ship type related to this mission. Therefore, the LSD stands out distinctly in its operational role.