フリー問題

問題文

A new engineer is told that Backstage is organized into Core, App and Plugins, each catering to a different group of contributors. Which mapping is correct?

選択肢

1. Core is the base functionality from the open source project, App is one deployed and customized instance, and Plugins add further features.
2. Core is the database layer, App is the backend, and Plugins are the frontend pages.
3. Core is the set of built-in plugins, App is the frontend package only, and Plugins are the packages that an organization writes itself.
4. Core is the command line tool and App is the generated project.