The center of the inca civilization was found closest to what number?

The answer is number 3.

The great Inca civilization, with more than 12 million inhabitants, was located in South America, more specifically in southeastern Peru since 1438. They eventually extended to northern Ecuador and central Chile but kept their administrative, political and military center in the city of Cusco, in modern-day Peru.

Therefore, number 3 is the correct answer (The number is just in the Peru country).

i really really really really really really dont know

i think it's a)sparta