The Inca and Aztec empires were heavily impacted by European exploration and colonization. The first impact was that when Europeans reached the Americas, the Incas and Aztecs were conquered which killed thousands of them and enslaved the ones that survived.
Capitalism: is an economic system in which the factors of production are privately owned and money is invested in business ventures to make a profit.
(Basically Capitalism referred to people who believed that the government should not interfere with businesses)
Socialism: the factors of production are owned by the public and operate for the welfare of all.
The main difference between the two was that in capitalism, business owners wanted to run everything themselves. They didn't want help from the government at all. Socialism was when the people wanted "some government" involved within the businesses. In summary, the main difference is the amount of government that was allowed to take over in a business.
Émile Zola is the correct answer, I hope this helps!!