You use GitHub for source control and Azure Boards for project management. GitHub and Azure Boards are integrated. You plan to create a pull request in GitHub. ...

You use GitHub for source control and Azure Boards for project management. GitHub and Azure Boards are integrated.
You plan to create a pull request in GitHub.
You need to automatically link the request to an existing Azure Boards work item by using the text of AB#.
To which two elements can you add the text? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. milestone B. label C. title D. comment E. description