Question

of the powder fell onto the desert floor. kourtney laughed. but they became serious when they tied the ribbons with each others wishes because the bracelets meant that they would always be there for each other
\sisters forever!\ said janelle.
\sisters forever!\ said kourtney.
why do janelle and kourtney become serious when they tie the ribbons with each others wishes?
they worry they made a mess with the powder.
they are both making an important promise.
they must focus on trying to see in the dark room.
they realize the characters are tied at the fight.

Explanation:

The text mentions "Sisters forever" twice, which implies a promise. When they said the words after each other's wrists, it was like making an important vow. The other options (worrying about powder, focusing on seeing in the dark room, realizing characters are lied at the lights) are not supported by the given text.

Answer:

They are both making an important promise.