Which ONE of the following is a correct example of an RDN?

JohnDoe is only a value, not an attribute-value pair, and therefore not a valid RDN.

An RDN (Relative Distinguished Name) is the leftmost, most specific component of a DN, representing the entry itself relative to its immediate parent, and consists of one or more attribute-value pairs, such as `cn=John Doe`. It does not include the full path to the directory root, which would make it a full DN.

cn=JohnDoe,ou=people,o=example is a full Distinguished Name (DN), not just a Relative Distinguished Name (RDN).

cn=John Doe, ou=people, o=example is a full Distinguished Name (DN) with spaces, not just a Relative Distinguished Name (RDN).