Steven Owns a Card and Gift Shop

Multiple Choice

Steven owns a card and gift shop. Recent research shows that the average sale in his store is $7.50. That is, consumers on average spend $7.50 each time they visit. Steven
Has initiated a loyalty card program which offers one free greeting card for every 10 that a consumer buys in the hope that can increase his store's average sale to $8.50 per visit. This is an effective tactic to use with what kind of repeat purchase objective?

A) category building
B) purchase frequency
C) purchase timing
D) purchase amount