Which description of an industrial revolution is correct?

a.
a new system of paying workers for products they make by hand

b.
a trade system that allows businesses to sell goods in more than one country

c.
a gradual change in the type of materials used to produce goods

d.
a new method of making goods that relies on machines rather than human labor

britain's king george iii, however, refused to receive the petition, which, written we consider whom we must oppose in this contest, and if it continues, what may the fundamental grounds upon which americans were taking up arms had shifted. that king george refused to so much as receive the

from the conditions of the working class in england by friedrich engels,the main idea is :