The correct option is Yes, you can sort issues and pull requests by the most added reaction.

GitHub supports sorting issue and pull request search results by reaction counts. You can use the reactions sort in search to bring items with the highest number of a specific reaction such as thumbs up to the top which helps a maintainer quickly surface the threads with the most community engagement.

You can run this search within a single repository or across GitHub and order the results so that the most reacted items appear first. This makes it easy to prioritize high signal conversations during triage.

You can only sort by labels and milestones is incorrect because labels and milestones are primarily filters and GitHub provides additional sorting options such as by reaction counts.

No, GitHub does not provide any sorting based on reaction counts is incorrect because GitHub search includes a reactions based sort for issues and pull requests that can return the most reacted items first.

Full AWS Practitioner Certification Question