You are a wine collector who uses the web to do research about your hobby.

The type of advertising described in the scenario where a wine ad pops up while the user is researching about wine is:

Contextual Advertising (Option C): This is when ads are shown based on the content of the web page the user is currently viewing. Since the user is on a news site and sees an ad related to wine, it fits the definition of contextual advertising.

Option A (Remnant) refers to unsold ad inventory that is sold at a discount.Option B (Behavioral) refers to ads based on the user's past behavior or browsing history.Option D (Demographic) targets users based on demographic information like age, gender, or location.

References:

IAPP Information Privacy Technologist (CIPT) training materials

“Internet Advertising: Theory and Research” by Ducoffe, Halavais