By mEntioning onE's First-or-sEConD-grADE tEAChEr, thE Author intEnDs to ConvEy An iDEA thAt ______.
A．tEAChErs ArE thE morAl moDEls oF young ChilDrEn
B．tEAChErs At ElEmEntAry lEvEl oF sChools ArE oF grEAt hElp to thE ChilDrEn's CArEEr suCCEss
C．onE's EArly EDuCAtion inFluEnCEs him All his liFE
D．ChilDrEn ArE morE purEr At thEir EArly AgE AnD EArly sChool yEArs ArE thEir BEst mEmory