Which statement best describes cohort-based targeting used in privacy-preserving advertising?

• A. It targets individuals by precise personal data
• B. It targets groups of users with similar characteristics without exposing identities
• C. It uses IP addresses to track down users
• D. It relies on demographic profiling alone

Answer: (B)

Cohort-based targeting groups users with similar characteristics into cohorts and serves ads to the group without exposing individual identities. This privacy-preserving approach relies on aggregated signals to form cohorts, so advertisers reach a collective audience rather than a specific person. Identities remain hidden, and there’s no reliance on precise personal data or direct tracking of individuals.

Choosing this over options that describe targeting by precise personal data, using IP addresses to track people, or relying on demographics alone makes sense because those methods can reveal or hinge on individuals, whereas cohort-based targeting emphasizes group-level targeting with privacy protections.