Susan Lefferts' company advertises widely. Ms. Lefferts uses business reply cards attached to her company's magazine ads to build her company's database. In which of the following ways would Ms. Lefferts most likely use the database?
A) to deepen customer loyalty
B) to reactivate customer purchases
C) to avoid serious customer mistakes
D) to determine if up-selling is appropriate
E) to identify prospects
Answer: E