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B
Two nuclei
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C
Four nuclei
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D
Many nuclei
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Solution
The correct option is D Four nuclei Cyst of Entamoeba histolytica is quadrinucleate and it is the infective stage for man. Man ingest quadrinucleate cyst with contaminated food or water. Cyst wall escapes digestion by gastric juice and reaches in the small intestine, where trypsin digest cyst wall and cyst produces 4 trophozoites.