What is the abbreviated name for the staff of the Headquarters Air Force?

The abbreviated name for the staff of the Headquarters Air Force is indeed referred to as the A-staff. In the context of military organizations and specifically within the Air Force, the 'A' signifies the general staff level that manages and directs operational and tactical planning and execution. The A-staff encompasses various branches that address a range of functions including operations, training, logistics, personnel, and intelligence, among others. This structure allows the Air Force to effectively coordinate its activities and resources across multiple levels, enhancing overall mission effectiveness.

The other options do not carry the same recognition or functional relevance within the military structure. The B-staff, C-staff, and D-staff designations are generally associated with other branches or levels of command structures and do not represent the Headquarters Air Force specifically. Therefore, the A-staff is the correct and commonly understood abbreviation in this context.