What was the key to Kielce's title win?

Choose one of these five keys to Kielce's historic victory.
Omdc1bil6camqts9ndb9
Lxxqtrzysi9w3hdaslb3
Ojthxiq09hjxfjxpbcdb
Lqgd0eshh9nhncdjejbt
Jvqkfrldudhegrmobzej
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