Final answer:
Selling stock is a method of raising money unique to corporations, allowing them to raise funds without debt but at the cost of some ownership and control.
Step-by-step explanation:
The method of raising money that is unique to corporations is selling stock. Unlike obtaining a bank loan, securing a line of credit, or using personal funds of the owner(s), selling stock involves offering ownership shares of the corporation to public investors.
This form of raising capital allows companies to generate funds without incurring debt, as shareholders provide financial capital in exchange for a stake in the company. However, this means the original owners relinquish some control, as shareholders have voting rights, and the company becomes accountable to a board of directors and its shareholders.