Which of the following can you do to express an IPv6 address as efficiently as possible?
(Select 2 choices.)
A.
Replace every four-character group of zeros with double colons.
B.
Remove leading and trailing zeros from each four-character group.
C.
Remove only leading zeros from each four-character group.
D.
Remove only trailing zeros from each four-character group.
E.
Replace only one four-character group of zeros with a double colon.
F.
Replace one or more contiguous four-character groups of zeros with a double colon.