Which of the Following Situations Would NOT Result in a Clumped

Which of the following situations would NOT result in a clumped population distribution?

A) zebras form herds to protect themselves from predators
B) oak seeds do not fall far from their parent tree
C) rotifer populations growing in a pond reproduce asexually
D) in a dense population, penguins maintain a certain space between neighborhoods to avoid aggression and protect their territory
E) all of these situations would result in a clumped population distribution