What is a copy of a repository?1 pointWorking directoryPull requestSSH protocolFork

A copy of a repository refers to a "fork."

Explanation

When you fork a repository, you create your own copy of the original repository under your GitHub account. This allows you to freely make changes without affecting the original project. You can work on your forked repository, and if you want to contribute your changes back to the original repository, you can submit a pull request.

• Working Directory: This is a directory in your local file system where you can work on your files and changes but does not refer specifically to a copy of the repository in the way a fork does.

• Pull Request: This is a method of submitting contributions to a project. It's not a copy of a repository but rather a request to merge changes from one repository to another.

• SSH Protocol: This is a means of securely connecting to servers over a network, not related to copying repositories.

Thus, the best answer here is "Fork."