Ingested RBCs (Erythrophagy) seen in:: (A) Naegleria fowleri, (B) Entamoeba histolytica, (C) Entamoeba coli, (D) Acanthamoeba
Answer is B. Erythrophagocytosis (engulfed RBC inside trophozoites) is confirmatory of E. histolytica.Infective form of E. histolytica- Quadrinucleate cyst.