The correct answer is - Indians.
Unlike the other Andean nations like Ecuador, Bolivia, and Peru, Chile is a country where the ethnic origin of the population is almost entirely based on people that have come from other parts of the world.
Little less than 95% of the population of Chile has European or other non-indigenous origin, while the total population that has indigenous origin is accounting for for little more than 5%.
The biggest ethnic group of indigenous origin are the Mapuche, with the Aymara being the second biggest.