What are the answers for “noticing mistakes boosts learning” in common lit questions

d is the best answer for this question.

which book is it because i might knoe the anwser

"valley of salt tears" and "dark, deep and foggy" are two images used to establish a mood of uncertainty and regret. this imagery is made up of sensory appeals to brings up   theological concerns of sin and retribution.

they conjure up the human   uncertainty about the divine and its relationship to the world.

i really dont know the answer so i cant