Ty ran a shop that sold and traded sports cards and sports memorabilia. He bought space on a billboard overlooking one of the main highways into the city and included the shops phone number (555-CARDS). The shop soon received a flood of phone calls inquiring about his location, stock, and business hours. The number of customers entering the store increased by tenfold and his sales doubled. Every person who called the shop because they saw the billboard are:

Multiple Choice

sales leads.

public recognition.

organic traffic.

referrals.