Correct option (c) Entamoeba histolytica
Explanation :
Amoebiasis is caused by Entamoeba histolytica. It is a protozoa, under Class Rhizopoda, order Amoebida. Taenia solium causes Cestodiasis. Cysticercosis. Wuchereria bancrofti causes Filariasis. Ascaris lumbricoides causes Ascariasis.