(A) The assistant adjutants general shall serve in the office of the adjutant general and aid the adjutant general by performing the duties that the adjutant general assigns them.
(B) In the absence or disability of the adjutant general, the senior assistant adjutant general shall perform the duties of the adjutant general.
(C) In the absence or disability of the adjutant general and the senior assistant adjutant general, the junior assistant adjutant general shall perform the duties of the adjutant general.