Match Column I with Column II

	Column I		Column II
a.	Amoeboid protozoans	i.	Have an infectious spore-like stage in their life cycle.
b.	Flagellated protozoans	ii.	They have a cavity (gullet) that opens to the outside of the cell surface.
c.	Ciliated protozoans	iii.	Some members can cause sleeping sickness.
d.	Sporozoans	iv.	Marine forms have silica shells on their surface.

• A

  a-ii, b-iv, c-iii, d-i

• B

  a-iv, c-ii, b-iii, d-i

• C

  a-i, b-ii, c-iii, d-iv

• D

  a-iv, b-iii, c-ii, d-i