How Are Superclusters Spread Throughout the Universe

How are superclusters spread throughout the universe?

A) Superclusters are distributed more or less evenly (i.e., at random) throughout the universe.
B) Superclusters are distributed in long lines that cover the universe like a gigantic fishing net.
C) Superclusters are distributed over the surfaces of large voids, like a collection of gigantic soap bubbles.
D) Superclusters are grouped into clusters of superclusters that in turn are grouped into clusters of clusters, and so on.