<prompt> Largest protozoan is?E. HistolyticaBalantidium coliE.coliPlasmodium  <response>: ANSWER: B Balantidium coliREF: Jawetts 24th edition Section VI. Parasitology Chapter 46-Medical ParasitologyBalantidium coli, the cause of balantidiasis or balantidial dysentery, is the largest intestinal protozoan of humans 