Question 121

### What’s true about default variables? (choose three) > https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables - [x] Default environment variables are set by GitHub and not defined in a workflow - [x] Most of the default environment variables have a corresponding context property - [x] Currently, the value of the default CI environment variable can be overwritten, but it's not guaranteed this will always be possible - [ ] You can add a new default environment variable adding the prefix “GITHUB_” to it - [ ] Default environment variables always have the prefix “GITHUB_” - [ ] Default environment variables can be accessed using the env context