Final answer:
King Athelstan was the victorious leader in The Battle of Brunanburh, consolidating his rule over a unified England.
Step-by-step explanation:
The victorious leader in The Battle of Brunanburh was a) King Athelstan. This battle, fought in 937, was a significant victory for the Anglo-Saxons under Athelstan's leadership, securing his position as ruler over a unified England and marking him as one of the most successful English monarchs of his time. Although other notable English kings like Alfred and Harold had significant battles against the Danes and Normans respectively, it was Athelstan who emerged victorious in the battle mentioned.
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