The last ice age affects human migration creating a land bridge where the ocean had once been.
The last glacial period, also called the Würm glaciation, was a period in which the global temperature dropped and resulted in an expansion of continental ice from the polar caps and glaciers.
Scientists have claimed that this ice age began 110,000 years ago and ended 12,000 years ago. This period is characterized by human migration from Asia to America through the Bering Strait.
The Bering Strait is a stretch of the sea located between the eastern end of Asia and the extreme northwestern part of America. This place is known for the formation of an ice "bridge" between the continent of Asia and America during the last glacial period that allowed the migration of the America.
According to the above, the correct answer is A. While options B, C, and D present information that is not related to human migration during the last ice age.
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