Final answer:
The Multicast Group Identifier in the given solicited node multicast address is 46:A702.
Step-by-step explanation:
The solicited node multicast address consists of the prefix 1:FF:00:00:00:00/104, followed by the last three bytes of the unicast IP address, and the last three bytes of the target MAC address. The 46:A702 part in the given SNMA represents the Multicast Group Identifier.