An antecedent of a pronoun is a word that refers to the same thing as this pronoun.
here the pronoun is "theirs"
<em>Rivers stopped flowing along the bank's so that they could hear Orpheus, whose music was harmonious than </em><em>theirs.</em>
(all the words in Boldface refer to the same thing).
What does the "theirs" refer to? it refers to their music, and the they is the Rivers (it's a personification of rivers)
The antecedent is the river!
The rising action of Antigone is Antigone's decision to defy Creon's orders and bury her brother.
<u>Explanation: </u>
Antigone is a brave warrior and fighter. She was not afraid of defying her uncle’s order and buried her brother and fulfills her responsibilities towards her brother. By burying her brothers, she proved that she is a fearless fighter and doesn’t care about any bad consequences.
She has bravely fought for her brothers and buried them with respect and care. This was the most prominent decision of her life and the turning point of her life too. We can say this was the rising action of Antigone because she rises high in herself and in people’s eyes.