Most of the people in latin america were descended from these three groups. which three?
native americans
europeans
australians
asians
americans
africans

The major ancestry is native American - some people have only this ancestry still. Many people have also a European ancestry, from Spain and other countries. The third group are Africans- who were brought as slaves, especially to the Caribbean and Brazil.

The option of Americans is confusing- this word is used for all inhabitants of America regardless of ancestry