The correct answer is this passage:
CHORUS God of Thebes, lead thou the round. Bacchus, shaker of the
ground! Let us end our revels here; Lo! Creon our new lord draws near,
Crowned by this strange chance, our king. What, I marvel, pondering? . .
.
Here the chorus says that they will "end the revels" which means: stop feeling happy, stop the festivities, become unhappy, because Creon is coming.
This shows that they have a negative attitude to him and perhaps fear him.
It helps develop ideas and mood at the appropriate speed.
Remove any sentences that are off topic or unimportant