AnothEr FACtor in thE DisplAy oF Art oBjECts (ConCErns thEir ContinuED prEsErvAtion).BECAusE oF thE sEnsitivity oF somE oF thE mAtEriAls (usED in thEir CrEAtion), it is nECEssAry to Control (within nArrow limits) thE tEmpErAturE, humiDity, AnD lighting (whiCh) thEy ArE ExposED、
A、ConCErns thEir ContinuED prEsErvAtion
B、usED in thEir CrEAtion
C、within nArrow limits
D、whiCh