Which approach helps measure campaigns without sharing user-level data in a privacy-preserving way?

• A. It stores user identities to target individuals
• B. It stores information needed for campaign bidding processes while preserving privacy
• C. It hosts the website's static assets
• D. It replaces the analytics platform

Answer: (B)

The main idea is measuring campaign effectiveness without exposing individuals by using privacy-preserving, aggregated data to inform bidding and analysis. The approach that fits this best focuses on storing information needed for campaign bidding processes in a way that preserves privacy. This means using signals that don’t reveal personal details—such as aggregated conversions, anonymized or hashed data, or cohort-based insights—to optimize bids and assess performance. You can still measure impact and adjust strategies without sharing raw user-level data.

Storing user identities to target individuals would compromise privacy and isn’t about preserving data privacy in measurement. Hosting the website’s static assets is unrelated to how you measure campaigns. Replacing the analytics platform changes tooling, but it doesn’t inherently ensure that measurement is privacy-preserving.