Which of the following describes correct LDAP service definitions?

Which of the following describes correct LDAP service definitions? (Choose three.)

A.
LDAP is optimized for searching information

B.
LDAP follows the X.500 directory standard

C.
X.500 directories can run only over TCP/IP

D.
LDAPv6 is the latest stable version specified by RFCs

E.
LDAP was developed as a lightweight alternative to DAP