Which interface can you use to create and publish web apps into Managed Google Play?

The Managed Play iframe, integrated into your EMM console, is the designated interface for creating and publishing web apps for Android Enterprise. This iframe provides a streamlined way to define web apps, including their title, URL, and display options, directly within your EMM environment. These web apps then appear in Managed Google Play for your users. While the Play Publishing console (https://play.google.com/console) is used for publishing public Android apps, it is not for managed web apps within an enterprise context. The Custom App Publishing API allows for programmatic publishing of private Android apps, but not web apps. Therefore, "All of these" is incorrect.