Managers of Kibbles 'n Bits brand of dog food developed the "Do Your Bit for Kibbles 'n Bits" tour that covered 33 U.S. Cities during a three-month period. The event involved having consumers in each of the cities enter their dogs in a competition to determine which dog would be picked for the brand's next TV commercial, based on the quality of tricks the dog would perform to receive Kibbles 'n Bits food. This is an example of _____.
a. Cause-related marketing
b. Creating a customized event
c. Public relations
d. Sales promotion
e. Database marketing