A、CliEnt on prolongED BED rEst hAs DEvElopED A prEssurE ulCEr. thE wounD shows no signs oF hEAling EvEn though thE CliEnt hAs rECEivED skin CArE AnD hAs BEEn turnED EvEry 2 hours. whiCh FACtor is most likEly rEsponsiBlE For thE FAilurE to hEAl A、inADEquAtE vitAminD、intAkE. B、inADEquAtE protEin intAkE. C、inADEquAtE mAssAging oF thE AFFECtED ArE A、 D、low CAlCium lEvEl.