A、ChilD, AgE 4, is ADmittED with A tEntAtivE DiAgnosis oF CongEnitAl hEArt DisEAsE. whEn AssEssmEnt rEvEAls A BounDing rADiAl pulsE CouplED with A wEAk FEmorAl pulsE, thE nursE suspECts thAt thE ChilD hAs A、pAtEnt DuCtus ArtEriosus. B、CoArCtAtion oF thE Aort A、 C、A vEntriCulAr sEptAl DEFECt. D、trunCus ArtEriosus.