What was wang kon’s greatest achievement?

a)conquering korea for china

b)unifying korea under the koryu dynasty

c)creating a system of moveable type

d)promoting the ideals of shintoism

I think it is ( B.) so yeah

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.