Which of the following most likely resulted from the transition from steam to coal during the Industrial Revolution?
A. Industrialization declined.
B. More people moved to rural areas.
O c. Less waste was produced.
O D. Productivity increased.

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.