As industrialization expanded, corporations formed. How did businesses become corporations?

a. A company would submit a request and a large payment to the government asking to become a corporation.

b. Due to the enormity of American businesses, the government took the initiative to appoint only a few corporations each year.

c. Several companies and business people would pool their capital and, as one organization, submit a request to the government.

d. Once a company became a monopoly, it was able to submit a request to the government to become a corporation