Homer repeatedly tells us the story of aegisthus and orestes throughout the first four books. what does this accomplish? select all that apply.

homer is familiarizing the greek audience with a story they did not know.
orestes's decision to act provides a model for what telemachus must do.
clytemnestra's infidelity is contrasted to penelope's fidelity.
the story reinforces the destruction caused by helen's wickedness.
agamemnon's blind faith is contrasted with odysseus's carefulness.
orestes's madness serves as a warning to telemachus to avoid acting rashly.