What language is spoken in Brazil and why? Spanish, as they were the first to explore South America.
English, as that was the location of the first permanent English settlement in
the Americas.
Portuguese, as they were permitted to control that territory east of the
imaginary line established in the Treaty of Tordesillas.
Brazilian, as they were free from colonization during the Age of Exploration.

Portuguese

Explanation:

Portuguese is the official language of Brazil and the primary language used in most schools and media. It is also used for all business and administrative purposes. Brazil is the only Portuguese-speaking nation in the Americas, giving it a national culture sharply distinct from its Spanish-speaking neighbours.

The answer is C;

Portuguese, as they were permitted to control that territory east of the

imaginary line established in the Treaty of Tordesillas.

After the Treaty of Tordesillas a little bit of land was left for Portugal to colonize in south America. That little bit of land on the edge of south America would become what is modern day Brazil. That's why still to this day they speak Portuguese in Brazil.

i believe it was the shinto