Olmec were the ancient people who were well known for the major civilization that has occurred in the past, like the Nile and the Indus valley civilization. They are also known as rubber people. They got extinct back about 400 BC.
The Olmec people were good at carving stones and building historic monuments. They have constructed many buildings which were very beautifully designed. They also made many sculptures and heads of Olmec people which were assumed to be their kings or superiors.
Olmecs <span>From 1260 BCE - 100 BCE, this civilization settled by Southern Mexico and on the shore of the Gulf of Mexico. Most importantly, they had no writing system, no wheels, and no metal tools making life a bit harder for them. They were a patriarchal society with a theocracy and monarchy like political structure. They had organized small villages and labor forces, making social structure easy to tell. They were a trading civilization as they had jade and obsidian. Also, colossal heads were thought to be representation of kings, for each one is different. They were polytheistic and had an organized religion. They made sacrificial rituals and had ceremonial centers, altars, and temples/palaces. They were agriculturally advanced, using irrigation, stone tools, and being able to grow maize, chili, gourds, beans, avocados, and even tomatoes. They domesticated a few animals for eating purposes only, not work. </span><span> </span>
Based of the map, you can infer that it's D because if you look the rivers are running through multiple countries and act as a border for the countries of Germany, Austria, Hungary, etc.
