1. Splunk Enterprise Documentation, Search Manual, "Manage knowledge object permissions": This section explicitly details the process for sharing knowledge objects like reports. It states, "After you create a knowledge object, you can set its permissions. You do this to control which other users can view or edit the object... You can make a knowledge object available to users of a specific app, or you can make it available to users of all apps." The interface for this is typically through an "Edit" or "Permissions" link associated with the object.
2. Splunk Enterprise Documentation, Reporting Manual, "Create and edit reports": This manual describes the lifecycle of reports. In the section on managing existing reports, it outlines how to use the "Edit" dropdown menu to access actions like "Edit Permissions," which allows the owner to share the report with other users and roles. This directly confirms the procedure described in option A.
3. Splunk Enterprise Documentation, Securing Splunk Enterprise, "About users and roles": This document explains Splunk's role-based access control (RBAC). It clarifies that access to objects is a combination of the object's permissions and the capabilities assigned to a user's role. This confirms that access is not arbitrarily limited to Admin or Power roles (refuting B) and is always governed by permissions, not open to "anyone" (refuting C).