Your new colleague is trying to learn more about the options for customizing attribution models in Display & Video 360. How would you accurately summarize those options?

Conversion modeling in Display & Video 360 helps account for conversions that cannot be directly observed due to privacy restrictions or technical limitations, providing a more complete picture of campaign performance. This is crucial as cookie-less environments become more prevalent. The other options are incorrect. View-through conversions (VTCs) are based on impressions, not necessarily viewable impressions, and there's no inherent rule to give them twice as much credit. Viewable VTCs can be enabled on various attribution models, not just last interaction. Finally, conversion modeling and viewable VTCs are complementary features that can be used together to enhance attribution accuracy.