What are the four spheres of social life in the Middle Ages?

In the Middle Ages, society was divided into layers. Most of the citizens belonged to the dependent population and had to pay duties to their feudal lord. The economy was of an agrarian type. That is, a large share of production was occupied by agricultural products. It was the main activity of many people. Due to extensive farming methods, there was a shortage of land in the countries. The farm was natural. Consequently, trade, as well as commodity-money relations, developed slowly.