Which sequence of actions correctly describes how to build and apply a new custom template in WordPress Full Site Editing?
AEdit the functions.php file to register a new template, then add blocks via the Customizer.
BCreate a new template in the Site Editor, add desired blocks, save it, then assign it to a page.
CInstall a plugin to generate templates, then select it from the page attributes dropdown.
DDuplicate an existing template file in the theme folder and edit it using a code editor.