A. ::/0 is the default route, and ::/128 is the unspecified address.
B. ::/0 is the unicast address, and ::/128 is the anycast address.
C. ::/0 is the anycast address, and ::/128 is the multicast address.
D. ::/0 is the unicast address, and ::/12 8 is the multicast address.
E. ::/0 is the unspecified address, and ::/128 is the multicast address.
F. ::/0 is the anycast address, and ::/128 is the default address.

A. Every 16 - bit segment segment that consists of all zeroes can be represented with a single colon.
B. The trailing zeroes in any 16 - bit  segment do not have to be written.
C. The leading zeroes in any 16 - bit segment do not have to be written.
D. Any single, continuous string of one or more 16 - bit segments that consists of all zeroes can be represented with a double colon.
E. The maximum number of times a double colon can replace a 16 - bit segment that consists of all zeroes is two.
F. Two zeroes in the middle of any 16 -bit segment do not have to be written.