Why does the author mention blood types in paragraph 3?A.Blood types offered proof that th
Why does the author mention blood types in paragraph 3?
A.Blood types offered proof that the migration had come from Scandinavia.
B.The presence of type B in Native Americans was evidence of the migration.
C.The blood typing was similar to data from both Japan and Scandinavia.
D.Comparisons of blood types in Asia and North America established the date of migration.