The Progressive Era Commonlit Answers?

alright no problem, cool

"the sandy walls seemed to collapse in on themselves"

and

"the bloodshot waters seemed to have no bottom"

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

the answer is c? i just got it write