A、CliEnt rECEiving morphinE For long-tErm pAin mAnAgEmEnt DEvElops tolErAnCE. whEn thE CliEnt Asks thE nursE whAt it mEAns, whiCh oF thE Following shoulD thE nursE rEsponsE A、"tolErAnCE is An AllErgiC rEACtion to A mEDiCAtion. " B、"tolErAnCE is An ABility to tAkE thE sAmE Drug For ExtEnDED pErioDs oF timE. " C、"tolErAnCE is An inCrEAsED rEsponsE to A mEDiCAtion. " D、"tolErAnCE is A DiminishED rEsponsE to A Drug so thAt morE is rEquirED to rEACh thE sAmE EFFECt. "