ACCorDing to this sElECtion, thE kEys to soCiAl DEvElopmEnt AnD mAtEriAl progrEss ArE______.
A．proFits AnD powEr
B．lAnD AnD nAturAl rEsourCEs
C．sCiEnCE AnD EDuCAtion
D．inDustry AnD tEChnology