Final answer:
J.R.R. Tolkien is the scholar who translated and taught the epic poem Beowulf from the given options. His work significantly influenced the scholarship and understanding of this Old English epic. Option 3.
Step-by-step explanation:
The epic poem Beowulf was translated and taught by many scholars over the years, but the person of interest from the options provided is J.R.R. Tolkien. Tolkien was a renowned philologist and author who translated Beowulf and wrote a famous essay 'Beowulf: The Monsters and the Critics' which had a significant impact on Beowulf scholarship.
His translation and analysis of the poem helped to revive interest in the work and solidify its importance in the English literary canon. In contrast, the Brothers Grimm focused on collecting and publishing German folk tales, while Alfred Lord Tennyson, as Poet Laureate, contributed widely to Victorian literature with his poems and essays.
So Option 3.