Which feature must you access to change properties regarding production readiness in AEM?

The option to access "Edit Properties" is the correct choice for changing properties regarding production readiness in Adobe Experience Manager (AEM). This feature allows users to view and modify the configurations and settings for individual assets or content items. When preparing content for production, it's crucial to ensure that the properties—such as versioning, workflow settings, and replication status—are correctly set, and these adjustments are made within the Edit Properties dialogue.

In contrast, the other available options do not directly pertain to modifying properties related to production readiness. "Edit Settings" typically deals with broader configuration settings rather than specific item properties. "Manage Permissions" is focused on access controls and user roles, which doesn't influence the readiness of content for production. "Update Resources" generally involves the management of resources but doesn't specifically address the readiness attributes of individual items within AEM. Thus, the most appropriate and relevant feature for making changes regarding production readiness is indeed the Edit Properties option.