iF you'D likE to mAkE Full usE oF thE liBrAry, your priority is
A．to know thE pEoplE in thE liBrAry
B．to BE surE to know somEthing ABout A pArtiCulAr topiC
C．to hAvE An iDEA oF thE orgAnizAtion oF thE liBrAry
D．to know thE sizE AnD EFFECtivEnEss oF thE liBrAry