When modifying the 'Managers' group, what must be changed to shift it to a Security group type?

To change a group from a Distribution group to a Security group type, it is necessary to modify the group type from Distribution. Distribution groups are designed primarily for email distribution and do not have security-related capabilities, meaning they cannot be used for permissions and access control within resources.

By changing the group type to Security, the group can then be utilized for managing permissions on resources, granting access, and enforcing security policies across the network. This transformation is critical for organizations that rely on groups for managing user permissions efficiently and effectively.

Other options do not achieve the intended result of changing the group type. Changing the group scope to Domain Local would redefine the scope of the group but not change its type. Removing all current members or changing the group name are actions that do not impact the fundamental type classification of the group itself. Therefore, modifying the group type is the essential action required to transition to a Security group.