Answer:
"They fought for a short time, and then both of them fell into the roaring water below." supports the central message that stubbornness leads to sorrow.
Step-by-step explanation:
The sentence "They fought for a short time, and then both of them fell into the roaring water below" supports the central message that stubbornness leads to sorrow because it shows the consequence of their stubbornness. The goats refused to give way to each other and instead fought for a short time, leading to both of them falling into the roaring water below. If either goat had given way to the other, they both could have safely crossed the bridge without incident. However, their stubbornness resulted in a negative outcome that caused them both to suffer. Therefore, the sentence highlights the message that being stubborn can lead to undesirable consequences and ultimately bring sorrow.