3. Which of the following best describes the settling of the American continent? (1 point)

A Anthropologists agree that the first settlers were from Europe and Africa.

B Anthropologists believe that the earliest settlers migrated from Asia thousands of years ago

C Genetic evidence confirms that Native Americans have always lived in the Americas.

D Scientific theories suggest that the continent was settled from south to north.

B Anthropologists believe that the earliest settlers migrated from Asia thousands of years ago

Explanation:

The first American inhabitants, Paleo-Indians, arrived in the New World with a single, unique wave of migration from Siberia 23,000 years ago, to be divided into today's groups only later, DNA research showed. Most scientists agree that the continent was inhabited by people crossing the Bering Land Bridge (at that time there was a crossroads between Siberia and Alaska), and archaeological discoveries so far indicate that humans were present on American soil 15,000 years ago.These migrants split into two major groups about 13,000 years ago, at a time when glaciers were melting and roads inland were opening up in North America, experts say.

The social difference that caused sectionalism in the antebellum era would be c.)  north was disorganized. the north had slow population growth, where as the south had mass immigration.hope this really mark