To What Extent Are the Cells of a Colonial Volvox

Multiple Choice

To what extent are the cells of a colonial Volvox specialized?

A) The cells of Volvox are not specialized at all;all are equivalent in function and to be otherwise would make them like those of the metazoa.
B) Somatic cells function in nutrition and locomotion while a few "germ" cells carry out reproduction.
C) Germ cells specialize in locomotion,others in nutrition,and others in reproduction.
D) Volvox is like two organisms living together symbiotically: one set of cells handles nutrition and locomotion and reproduce their type;another type of cell handles sexual reproduction and reproduce their type.
E) A Volvox cell alternates between first being somatic,then being reproductive.