Article Summary Starting as a Chicago Antique Store That Sold Sandwiches on Sandwiches

Article Summary
Starting as a Chicago antique store that sold sandwiches on the side, Potbelly has grown from this 1977 beginning into a company which today operates approximately 300 sandwich shops in the United States. In October 2013, Potbelly sold stock for the first time through an initial public offering (IPO) , with shares jumping in price from the initial offering price of $14 to more than $32 on the same day. Since 2011, Potbelly has seen an increase in in both sales and revenue, and earned a profit of $2.8 million in the first half of 2013.
Source: Matt Krantz, "Potbelly IPO shares more than double on open," USA Today, October 4, 2013.
-Refer to the Article Summary. When Potbelly sold stock to the public in its IPO, it did so through the NASDAQ market. This was an example of Potbelly using ________ to raise funds.

A) indirect finance
B) direct finance
C) bonds
D) corporate governance