The Floral Supplies Salesperson Walked into the Office of Gregg

The floral supplies salesperson walked into the office of Gregg Katz, owner of KCFlorist.com and said, "Congratulations on being voted Floral Management's 2008 marketer of the year. Your Internet sales must be doing great if your industry recognizes you as its best retailer." The salesperson was using the _____ opening.

A) compliment
B) curiosity
C) product
D) introduction
E) referral