The active form of Entamoeba histolytica feeds upon

Options

A. Mucosa and submucosa of colon only
B. Food in intestine
C. Blood only
D. Erythrocytes, mucosa and submucosa of colon

Answer

D

Explanation

The trophozoites of Entamoeba secrete proteolytic enzymes which partially dissolves and loosens the mucosa, submucosa and blood capillaries of the colon wall.