Which of the following statements is a valid conclusion of this experiment? A) Balanus can only survive in the lower intertidal zone, because it is unable to resist desiccation. B) Balanus is inferior to Chthamalus in competing for space on intertidal zone rocks. C) The two species of barnacles do not compete with each other because they feed at different times of day. D) When Balanus is removed, it can be observed that the realized niche of Chthamalus is smaller than its fundamental niche. E) These two species of barnacle do not show competitive exclusion.