Which two changes to the app will require user acceptance to perform the upgrade?

You have a custom Microsoft Teams app that you deploy to users by using the Microsoft Teams admin center.

You plan to update the app.

Which two changes to the app will require user acceptance to perform the upgrade? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
A . Modify the logic in the JavaScript of the app.
B . Upgrade the backend service.
C . Modify the CSS of the content page.
D . Configure webAppiicationinfo in the app manifest to point to a new domain.
E . Remove a bot

Answer: B,D