Where do you verify that UserDirectory is enabled?

Where do you verify that UserDirectory is enabled?

A.
Verify that Security Gateway > General Properties > Authentication > Use UserDirectory
(LDAP) for Security Gateways is checked
B. Verify that Global Properties > Authentication > Use UserDirectory (LDAP) for Security
Gateways is checked

C.
Verify that Security Gateway > General Properties > UserDirectory (LDAP) > Use UserDirectory
(LDAP) for Security Gateways is checked

D.
Verify that Global Properties > UserDirectory (LDAP) > Use UserDirectory (LDAP) for Security
Gateways is checked