Ivan, a salesperson at a computer manufacturing firm, tries to persuade his customers to buy a particular computer by explaining its features and comparing it with the other models in the market. Moreover, he always maintains communication with customers who visit the firm. He does this to build long-lasting relationships with customers. In this scenario, Ivan is using _____.
a. sales promotion
b. content marketing
c. e-mail marketing
d. personal selling
Answer: d. personal selling