A、CliEnt on An inpAtiEnt psyChiAtriC unit At A Community mEntAl hEAlth CEntEr is pACing thE hAllwAy AnD AppEArs AgitAtED、whEn thE nursE ApproAChEs him, hE sAys louDly, "lEAvE mE AlonE. " whAt’s thE nursE’s BEst ApproACh A、sAy nothing AnD pACE with thE CliEnt. B、sAy "you sounD upsEt. i’D likE to hElp. " C、sAy "okAy" AnD wAlk AwAy. D、summon hElp in CAsE thE CliEnt BEComEs AggrEssivE.