Which command provides capabilities to promote stability and deter aggression in the Pacific region?

The Pacific Air Force is the correct choice because it is specifically tasked with providing air power and capabilities in the Pacific region, which includes promoting stability and deterring aggression among nations in that area. This command is responsible for maintaining a forward-deployed presence, conducting joint exercises, and engaging in partnerships with allied forces, all of which contribute to regional security and deterrence strategies.

The other commands, while integral to the overall mission of the Air Force, have different focuses. Air Force Space Command primarily deals with space operations and capabilities, which do not directly relate to regional stability in the Pacific. Air Force Special Operations Command focuses on unconventional warfare and special operations, generally outside the scope of promoting stability in a conventional sense. Air Mobility Command specializes in airlift operations and the strategic movement of troops and cargo, which, although important, are not the primary means of addressing regional stability and deterrence.