In fictional stories, authors describe who deal with problems and who take part in the story’s action.

in dubai we don't have those but i would love to try it lol

i'm ganna take my horse lol jk anyway bow! hello

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".