You use Azure Repos to manage source code and Azure Pipelines to implement continuous integration and continuous deployment (CI/CD). You need to ensure that all...

You use Azure Repos to manage source code and Azure Pipelines to implement continuous integration and continuous deployment (CI/CD).
You need to ensure that all comments on pull requests are resolved before the pull requests are included in a build. The solution must minimize administrative effort.
What should you include in the solution?

A. a custom action B. a post-deployment gate C. a branch policy D. a pre-deployment gate