He discovered that the earth revolves around the sun(einstein believed both possibilities) A. nicolaus copernicus
B. francis bacon
C. louis pasteur
D. andrew vesalius

If I’m not mistaking I believe the answer to your question is going to

A) Nicklaus Copernicus

Ifound this on google “simply, the working conditions were terrible during the industrial revolution. as factories were being built, businesses were in need of workers. with a long line of people willing to work, employers could set wages as low as they wanted because people were willing to do work as long as they got paid.” i hope this you for what your looking for.