Volvox, the Multicellular Green Alga Shown Below, Has Flagellated Cells

Multiple Choice

Volvox, the multicellular green alga shown below, has flagellated cells on its surface cells but not on interior cells. How might this condition develop?

A) Interior cells attempt to grow flagella, but the lack of open space suppresses the effort.
B) Interior cells discard the genetic instructions for flagella once their interior position is established.
C) The commitment of resources for photosynthesis reduces the availability of protein and other biomolecules needed to produce flagella.
D) Signals from surface cells or the absence of signals from the environment to the plasma membranes of the interior cells suppresses the growth of flagella.