Show the unabbreviated colon hex notation for the following IPv6 addresses:
a. An address with 64 0s followed by 32 two-bit (01)s.
b. An address with 64 0s followed by 32 two-bit (10)s.
c. An address with 64 two-bit (01)s.
d. An address with 32 four-bit (0111)s.