Which of the following best describes the gravitational binding of galaxies? a. they are arranged from smallest to largest. b. there is no certain arrangement. c. they are found in clumps called clusters or superclusters. d. they often violently collide because of their absence of gravity.

c.They are found in clumps called clusters or super-clusters.

Explanation:

Galaxies are bound to each other by gravity in clusters. a cluster contains about 100 to 1000 galaxies and has mass ranging from .

Three to ten clusters form a super-cluster in which clusters are gravitation-ally bound. Super-clusters are largest bodies in the universe.

a.

explanation:

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