Prior to the 1500's, most people accepted the view that the planets within our solar system revolved around a. earth. b. the sun. c. each other. d. earth's moon.

The answer is definitely A. earth hopefully this helps!

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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.