Why can Smart Bidding continue to be effective after the deprecation of third-party cookies?

Smart Bidding's effectiveness persists after third-party cookie deprecation because it primarily leverages first-party data and Google's advanced machine learning. It analyzes a client's conversion data, signals from their website (first-party cookies), and Google's extensive contextual and behavioral data to optimize bids. This approach reduces reliance on third-party cookies for performance. The other options are incorrect because Smart Bidding does not rely on third-party media platforms forbidding, nor is its durability solely dependent on U ID 2.0 or exclusively on first-party cookies; rather, it's the combination of data sources and machine learning that ensures its continued efficacy.