Burton, Makers of Snowboards, Introduced a New Surfboard Called "The

Burton, makers of snowboards, introduced a new surfboard called "The Dominator". In creating the marketing program to support this new product, Burton could leverage secondary brand knowledge. If Burton secured the endorsement of a top professional surfer, they would be linking to which particular type of source?

A) spokespeople
B) channels of distribution
C) sporting or cultural events
D) characters
E) geographical regions