How does Beowulf show bravery?

By far the most courageous character, Beowulf has three key moments in which he demonstrates his bravery when he kills Grendel, when he kills Grendel’s mother, and when he fights the dragon. Beowulf realizes the shameful effects on those who are not brave, and seeks to prove his bravery to ensure that he is remembered as a courageous hero.

answer: b) bubbling its way

explanation: an adjective is a word or a group of words that modifies a noun (name, thing, place,

in this case, the first option "to heartily enjoy" isn't describing or modifying any noun, the third option "hiking along merrily" is describing an action but it doesn't modify any noun, the last option "beside us" is just a preposition that indicates position, so the correct answer is the second one: "bubbling its way" because it is modifying the noun "stream".

what is this from, i cant tell what language he uses without the piece of literature