What are the key inputs for conversion attribution after third-party cookie deprecation?

The third option is correct because, in the wake of third-party cookie deprecation, Google Campaign Manager 360 has shifted toward a privacy-first attribution model that relies on AI to fill data gaps through sophisticated modeling, contextual signals to understand the environment where an ad appears without needing individual tracking, and privacy safe integrations (such as the Privacy Sandbox or enhanced conversions) to securely connect touchpoints while maintaining user anonymity. Unlike the other options, this selection excludes the use of IP addresses, which are increasingly restricted and considered unreliable or non-compliant identifiers for long-term tracking in a privacy-conscious digital landscape.