One similarity between the land bridge and coastal crossing theories of migration is that both stress the use of boats in migration. neither point out how easy it was for migrants to find food. both state that migrants used the land bridge to migrate. neither are taken seriously by archaeologists.

The correct option is: both stress the use of boats in migration

Both theories are contrary, but when talking about maritime contact, the following can be said: The Beringia bridge disappeared 11,000 years ago (Scott A. Elias) and, with the exception of the Eskimos, who maintained uninterrupted summer maritime trade contacts between Siberia and Alaska

b) brahmans   is nomadic society

b - those executed came from every social and economic class