The following activities and programs are excluded or exempted from the definition of advisory or assistance services:
(a) Routine information technology services unless they are an integral part of a contract for the acquisition of advisory and assistance services.
(b) Architectural and engineering services as defined in the Brooks Architect-Engineers Act (40 U.S.C. 1102).
(c) Research on theoretical mathematics and basic research involving medical, biological, physical, social, psychological, or other phenomena.