Copper had been mined in the US for thousands of years, but large-scale commercial mining of copper took off starting in the late 1800s. This was due to several factors. Technological advancements in the mining industry led to improvements in the production of copper. This helped the country keep up with the growing number of people wanting to buy copper starting in the 1890s. At the same time, the growth of the railroad system made the transportation of copper in large batches much easier. Several states saw rapid growth in the production of this resource, for example: ______

Which choice most effectively uses the data in the graph to complete the example?
Choose 1 answer:
Choose 1 answer:
(Choice A) Copper production rose significantly from 1899 to 1909 for Arizona, Michigan, and Montana.
A
Copper production rose significantly from 1899 to 1909 for Arizona, Michigan, and Montana.
(Choice B) The rise in copper production in Michigan slowed from 1902 to 1909.
B
The rise in copper production in Michigan slowed from 1902 to 1909.
(Choice C) Montana and Arizona produced more copper than Michigan did in 1909.
C
Montana and Arizona produced more copper than Michigan did in 1909.
(Choice D) Fewer than 100 million pounds of copper were produced in Arizona in 1899.
D
Fewer than 100 million pounds of copper were produced in Arizona in 1899.

A. Copper production rose significantly from 1899 to 1909 for Arizona, Michigan, and Montana.