Which sentence uses the correct plural possessive form of boy?
a.
the woman carried the boys' shoes in her bag.
b.
the woman carried the boys's shoes in her bag.
c.
the woman carried the boy's shoes in her bag.
d.
the woman carried the boys shoes in her bag.

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

Wiesel interrupts the narration that begin with, "a few ss officers wandered through the room, " with a parenthetical insertion. explain the purpose of the insertion.

No copy and pasting will make brainiest