Read the excerpt from "Perseus."

The Ethiopians were being devoured in numbers by the serpent; and, learning from the oracle that they could be freed from the pest only if Andromeda were offered up to it, they forced Cepheus, her father, to consent. When Perseus arrived the maiden was on a rocky ledge by the sea, chained there to wait for the coming of the monster.

In this excerpt, readers learn that ____
is an accepted practice in ancient Greek life.
question option famine, sacrifice, betrayal, and exile.