Which of the following is the correct syntax for including a schema file in slapd.conf?

The include directive in slapd.conf is used to load additional configuration files, such as schema definition files. By using include /usr/local/etc/openldap/schema/core.schema, the OpenLDAP server is instructed to parse and incorporate the definitions from the core.schema file during startup.

The allow directive is not a standard way to include schema files in slapd.conf.

The permit directive is not a standard way to include schema files in slapd.conf.

The add directive is not a standard way to include schema files in slapd.conf.