What is the "sale of saints"? Where does it take
place?

The santurantikuy, market or sale of saints, is a Christmas fair that takes place in Cuzco and dates from the sixteenth century, years in which the sale of “bunkers” for the noble families, monasteries and convents of Cusco began

Explanation:

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".