The infection of Entamoeba histolytica takes place by

Options

A. Trophozoite
B. Binucleated cyst
C. Trinucleated cyst
D. Quadrinucleated cyst

Answer

D

Explanation

Entamoeba histolytica complete its life cycle only in one host (human) thus it is a monogenetic parasite. The infection begins with swallowing of mature quadrinucleate cyst which is passed in the faeces of human. The cysts are swallowed among with contaminated food or water.