whiCh oF thE Following might BE thE BEst titlE For thE pAssAgE
A．sElF-EFFiCiEnCy
B．thE importAnCE oF EnvironmEnt protECtion
C．EnvironmEnt protECtion AnD EConomiC DEvElopmEnt
D．inDustriAlizED CountriEs shoulD hElp DEvEloping CountriEs protECt EnvironmEnt