People around the Andes Mountains in Peru.
The answer is D, they just wanted to expand westward
Nationalism spread across Europe during Napoleon's time. It was repressed for a generation under the Congress of Vienna and the Concert of Europe until the revolutions of 1845/1845. The term "Nationalism" can be defined as a group of people with the same nationality should unite together under a single flag. Napoleon nationalised France and then moved across the rest of Europe, conquering countries along the way. Eventually, Napolean was defeated and the Congress of Vienna was held by the heads of the European countries. The aim of these meeting was to ensure peace and stability in Europe. The revolutions of 1845/1848 overthrew the repressive European governments of the day.
The movement where people from or with ancestors from 21 Central and South American countries that were once former colonies of Spain were grouped together speaks to dynamics underlying involuntary ethnicity. This process divides people into racial classification where they are explicitly or implicitly ranked on a social worth’s scale.
I say it's D. It increased the demand for slave labor to grow cotton.