Which benefit of Google App campaigns aligns with the following statement about machine learning?

Reach: The complexity of creative A/B testing and the possibility of human bias disappear with an automated approach to campaign management.
Creativity: More inventory and ad formats means generative machine learning can serve ads to a wide audience in various formats.
Relevance: Machine learning processes massive amounts of data to deliver the most effective message to the right user at the right time.
Simplicity: Greater inventory and more ad formats mean machine learning can serve ads to a wide audience of interested users.