"In the first place, the great number of hands congregated together, in some rooms forty, in some fifty, in some sixty, and I have known some as many as 100, which must be injurious to both health and growing..I have found the effects to be awfully detrimental to the well-being of the operative;I have observed frequently children carried to factories, unable to walk and that entirely owing to excessive labor and confinement.."

- from testimony by John Wright in the "Sadler Report" (1833)
What type of reforms did this testimony lead to in industrialized nations in the mid 19th century?
A) child labor laws
B) minimum wage laws
C) overcrowded cities
D) government healthcare