Answer:
The correct answer is: prologue.
Explanation:
A normal Greek drama, that is, a Greek theatre play usually begins with a prologue in which there is a narrative to introduce the subject and all episodes to come. Prologues can present songs related to the narrative, or actors in a conversation, or even someone doing a monologue. There are some Greek dramas in which the prologues are very different and may not even be presented, such as in Aeschylus' tragedies.
