In social insect colonies most of the members are closely related sterile female “sisters” that form a complex society dedicated to making sure that the offspring of the queen, which is their “mother,” survive. These colonies demonstrate the theory of kin selection because

Athey decide which individuals will be relatives and will share territory.

Bthey work together, which ensures that their genes will be passed on.

Cthey build complex nests which are shared by all within the society.

Dthey have complex methods of communicating with each other.