LPI Exam Questions

Which of the following is correct about this excerpt from an LDIF file?

Which of the following is correct about this excerpt from an LDIF file? dn:
cn=PrintOperators,ou=Groups,ou=IT,o=BR

A.
dn is the domain name.

B.
o is the organizational unit.

C.
cn is the common name.

D.
dn is the relative distinguished name.