Use the excerpt from “Ghost House” by Robert Frost to answer the question. What imagery helps the reader infer who the “mute folks” are?

“I dwell with a strangely aching heart”
“Night comes; the black bats tumble
“Those stones out under the low-limbed tree”
“With none among them that ever sings”
“As sweet companions might be had”

The imagery that helps the reader infer who the "mute folks" are in the excerpt from "Ghost House" are the lines "Those stones out under the low-limbed tree" and "With none among them that ever sings." The mention of stones under a low-limbed tree suggests a cemetery or graveyard, where the "mute folks" or the deceased are buried. Additionally, the line "With none among them that ever sings" further indicates that the "mute folks" are those who are no longer alive and cannot participate in activities such as singing.