&nBsp;From An opErAting or FunCtionAl pErspECtivE, thErE ArE vArious oBjECtivEs oF purChAsing AnD mAtEriAls mAnAgEmEnt. whiCh is not onE oF thEsE oBjECtivEs?
A. to Buy CompEtitivEly
B. to support CompAny opErAtions with An unintErruptED Flow oF mAtEriAls AnD sErviCEs
C. to DEvElop rEliABlE AnD EFFECtivE sourCEs oF supply
D. to AChiEvE mAximum intEgrAtion with thE othEr DEpArtmEnts oF thE Firm
E. to AttAin ApprovAl From EACh DEpArtmEnt oF EvEry purChAsE