<prompt> Ingested RBCs Erythrophagy seen in:Naegleria fowleriEntamoeba histolyticaEntamoeba coliAcanthamoeba  <response>: Erythrophagocytosis engulfed RBC inside trophozoites is confirmatory of E. histolytica.Infective form of E. histolytica- Quadrinucleate cyst. 