Question

Customizing ads to people who had earlier visited the site is__________.

Answer 1

Customizing ads to people who had earlier visited the site is customer preference.

Customer preferences are expectations, likes, dislikes, motivations and inclinations that drive customer purchasing decisions. They complement customer needs in explaining customer behavior. For example, a customer needs shoes and they'd prefer a particular style, brand and color

Answer 2

Customizing ads to people who had earlier visited this site is retargeting.

When a person repeatedly visits a site for seeing a particular ad, it means that he is really interested in that product.

So these ads are further customised with the quotes and other information about those products, which is termed as retargeting.