You created a custom theme for an application. Examine these requirements: (Assuming requirements mandate syncing changes). Which solution guarantees that any changes to the master theme are reflected in the copied theme?

To ensure changes from a master theme automatically propagate to a copied theme, the copied theme must be subscribed to the master. After the master theme is updated, the subscribed theme must be refreshed. This action pulls the latest definitions (templates, CSS, etc.) from the master theme, thereby synchronizing it. This subscription model is the designed mechanism for maintaining consistency between a master theme and its copies across one or more applications.

B. Refreshing templates is part of the theme refresh process but is not the complete solution on its own; the subscription must exist first.
C. Manually copying changes is inefficient, error-prone, and defeats the purpose of the automated subscription and refresh mechanism.
D. Verifying the subscription is a check, not an action. It confirms the link exists but does not perform the synchronization of changes.

Oracle APEX Documentation, 23.2, "Oracle APEX App Builder User's Guide", Section 17.5.5 "Managing Theme Subscriptions". This section explains, "To apply changes from the master theme to the current theme, you refresh the theme... Refreshing a theme updates all templates, CSS, and JavaScript files by overwriting them from the master theme."

Oracle APEX Documentation, 23.2, "Oracle APEX App Builder User's Guide", Section 17.5.5.2 "Refreshing a Subscribed Theme". This section details the steps to refresh a theme, which is the action required to pull in updates from the master.