The active form of Entamoeba histolytica feeds upon
(a) food in intestine (b) blood only
(c) erythrocytes, mucosa and submucosa of colon
(d) mucosa and submucosa of colon only
(a) food in intestine (b) blood only
(c) erythrocytes, mucosa and submucosa of colon
(d) mucosa and submucosa of colon only