The correct answer is Beowulf/the dragon.
Beowulf is the main character in the epic poem "Beowulf," which means that he is the protagonist. Antagonist is a bad character, who is usually the protagonist's worst enemy. In the beginning of the poem, the antagonist was Grendel, but at the end, it was the dragon.
Life of Pi<span> even flirts with nonfiction genres. The Author's Note, for example, claims that the story of Piscine Molitor Patel is a true story that the author, Yann Martel, heard while backpacking through Pondicherry, and the novel, with its first-person narrator, is structured as a memoir.</span>
The word "felicity" here means a sense of satisfaction, almost catharsis, as the speaker has found closure in his prayer and happiness.