Identify the four valid IPv6 addresses. (Choose four.)

A.
::

B.
::192:168:0:1

C.
2000::

D.
2001:3452:4952:2837::

E.
2002:c0a8:101::42

F.
2003:dead:beef:4dad:23:46:bb:101

Explanation:
http://www.intermapper.com/ipv6validator
http://www.ripe.net/lir-services/new-lir/ipv6_reference_card.pdf