Which of the following is a main idea of “the chimney sweeper” by william blake?

angelic young boys can escape from poverty.
living without clean air causes illness.
the hazards of working in an industrial profession are real.
child laborers suffer misery.

The main form of "The Chimney Sweeper" is composed totally in the first individual from the perspective of an especially bright and hopeful youthful scope. In spite of the fact that his mom kicked the bucket when he was youthful and his dad sold him into the perilous and unpalatable calling of smokestack clearing, he energizes another breadth named Tom Dacre. Tom then has a fantasy of thousands of sweepers who were "locked up in boxes of a dark" who were liberated by a heavenly attendant and permitted to run out on a green plain in the daylight and wash in a stream. The blessed messenger discloses to Tom that if he's a decent kid, he will "have God for his dad and never need satisfaction." The following morning Tom and the storyteller rise early and go to work in a glad state, realizing that "they require not fear hurt," apparently on the grounds that God is viewing them. This is a shockingly innocent take a gander at a disastrously out of line predicament for youngsters to continue, yet it demonstrates the spirit's capacity of observing something to be cheerful about even in the most hopeless of conditions.