Which category of USNS ships provides a variety of services including hydrography and special warfare support?

The correct answer is Special Mission. This category of US Navy Ships is designed to perform specific and unique operations that go beyond traditional naval combat roles. Ships in the Special Mission category are equipped to provide a variety of specialized services, including hydrographic surveys, oceanographic research, and support for special operations forces. This versatility allows them to support naval and joint warfare operations effectively.

In contrast, the Service Support category typically encompasses ships that provide general logistic and administrative support, while the Combat Logistics Force is primarily focused on replenishing combat ships with fuel, munitions, and supplies. The Sealift category is dedicated to transporting military personnel and equipment, emphasizing the movement of forces rather than specialized operational capabilities. Thus, the distinct functions and capabilities of Special Mission ships make this answer the most appropriate choice.