(Figure 912) in the Experiment Associated with the Figure, Acorn Barnacles

(Figure 9.12) In the experiment associated with the figure, acorn barnacles facilitate the growth of algae. If you removed both acorn barnacles and the limpet predators of algae, what would you be likely to observe over time?

A) a dense carpet of little brown barnacles only
B) a carpet of little brown barnacles followed by algal growth
C) no colonization of any organisms
D) a dense carpet of algae only