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which paragraph contains the exposition in this passage?

ellie took pride in her archery skills. among the 40 members of greenville school's archery club, she was the only one who could hit a target 50 meters away.
during the second term, a new student, ripley, joined the archery club. on her first day, ripley proved that she was just as good as ellie. the instructor even believed that she could perform better than ellie. gradually, ripley took over ellie's position as the top archer of the school. as a result, ellie lost a lot of friends who wanted to hang out with the new star archer.
finally, the day of the state archery tournament arrived. as expected, ripley quickly climbed the scoreboards; ellie followed closely behind. however, no one realized that ellie had secretly been practicing for the final 50-meter round. when the final round was over, everyone was astonished. ellie had struck a perfect bull’s-eye on all five attempts. she was the state champion!
everyone rushed to congratulate ellie on her victory. she walked over to her rival, who was standing alone in a corner. ellie took ripley's hand and her. if it had not been for her, ellie would have never trained so hard.
over the next several years, ellie and ripley continued their rivalry. but when they were not on the field, they were the best of friends.