Why did the number of corporations grow dramatically after 1870?

a. corporations were able to operate in only one area.

b. corporations had protection so that investors would not lose money.

c. corporations had access to money and new technology.

d. corporations did not include risky businesses, such as mining and railroads.

C. Corporations had access to money and new technology

Explanation:

The access to money brought in new technology which made it easier, safer, and more efficient for big corporations and their workers to do their job. This resulted in more output and growth, more consumers and ultimately more money.

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