A, i think. i don't know a lot but i think a makes the most sense.
The group that migrated is Hindu
It lies on the Indian Ocean side of the continent, almost entirely within the Eastern Hemisphere – hence the name “East Antarctica”. The region includes the South Magnetic Pole, the Geographic South Pole, the Ross, Scotia and Weddell Seas and the Shackleton Ice Shelf.
Answer: 1: Likely have some basis in truth
2: very important
Explanation: