The correct answer is D. In an Enterprise Grid launch, admin-related governance should be handled at the organization level wherever possible, not separately across individual workspace settings. Creating a user group for all admins through org policies and the permissions tab gives the organization a centralized, repeatable way to manage an admin audience. This supports launch readiness because admins can be addressed consistently in announcements, enablement, support workflows, and governance communications. Option A is too workspace-local and does not scale cleanly across Enterprise Grid. Option B repeats the workspace-level mistake and also mixes admins and owners without matching the stated requirement. Option C incorrectly creates a user group for owners rather than admins. Option D matches the requirement and the Enterprise Grid operating model: use org-level policy configuration to create the intended admin user group. The key principle is centralized governance for enterprise-wide admin structures.

Reference topic: Policies and Settings --- org policies, permissions, admin user groups, Enterprise Grid launch configuration, and centralized governance.

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