AMC audiences is an API-only feature.

The correct answer is False because AMC (Amazon Marketing Cloud) audiences are not solely an API-only feature. While AMC does provide API access for more programmatic and automated integration, audiences in AMC can also be created and managed through the AMC user interface (UI), making them accessible to users who prefer not to interact solely through APIs. This flexibility allows advertisers and analysts to create, analyze, and manage audiences both via the UI and through API calls, providing a user-friendly experience for those who want to leverage the platform without extensive technical knowledge. Therefore, AMC audiences are not restricted to API usage alone.