At the Time of the First Contact with Europeans, Baja

At the time of the first contact with Europeans, Baja California was a culturally diverse region. The archaeological record here __________________.

A) provides undisputable evidence that the first migrants to the Americas moved down the coast
B) shows an incredible diversity of short-lived, migratory cultures over several thousand years
C) indicates that it is the point of origin for maize
D) tells us that ancient adaptations and ways of life were preserved by the southern-most peoples of the peninsula