Emma is studying for her real estate license and decides to go online to find some extra practice exam questions. She finds a website that has a few practice questions but she wants more. She notices that she could sign up to be a member for free to gain access to actual practice exams, so she inputs her email address. A few days later, her inbox is full of emails of sales pitches from the company to buy their practice books and even more practice exams. What marketing strategy has the company employed?
A.
marketing information systems
B.
persuasive rhetoric
C.
email research
D.
email marketing