The Air Force Inspection System (AFIS), as described in AFI 90-201__________________.
A. Clearly defines the purpose of inspections to be unit improvement.
B. Incorporates unit-level self-assessments and higher headquarters inspections into a single integrated inspection structure.
C. Establishes gatekeepers at the Major Command level to control the number and timing of external inspections taking place at units.
D. AFIS guidance includes all of these.