The Evolutionary Position of Leeches Is Best Described as

Multiple Choice

The evolutionary position of leeches is best described as

A) a link between roundworms and segmented worms because they have a fixed number of segments.
B) closest to the primitive annelid ancestor that later gave rise to all other annelids.
C) closest to the polychaetes due to their common aquatic life style.
D) is a monophyletic clade within the Clitellata.
E) is a paraphyletic group.