The descriptive features of a village area can be categorized into three main aspects: agriculture as the primary occupation, low population, and primary relations. Let's discuss each of these features in detail:

Agriculture as the primary occupation:
In a village area, agriculture is often the primary occupation of the residents. The majority of the villagers engage in farming, cultivating crops, and rearing livestock. They rely on agriculture for their livelihood and sustenance. The land in the village is typically used for farming purposes, and the villagers possess knowledge and skills related to agricultural practices.

Low population:
Village areas usually have a lower population compared to urban areas. The number of inhabitants in a village is relatively small, creating a close-knit community where people often know each other. The smaller population size allows for a more intimate and familiar social environment. This also means that the infrastructure and services in villages may be limited compared to urban areas.

Primary relations:
In a village, primary relations play a significant role in the social fabric. The residents tend to have close-knit relationships based on kinship, community, and shared traditions. There is a sense of belonging and interconnectedness among the villagers, which strengthens social bonds. People often rely on each other for support, whether it's in the form of assistance in agriculture, celebrations of festivals, or sharing resources.

All of the above:
The correct answer is option D - all of the above. This means that all the mentioned features (agriculture as the primary occupation, low population, and primary relations) are descriptive of a village area. These three aspects collectively define the characteristics and lifestyle of a village community.

In conclusion, village areas are characterized by agriculture as the primary occupation, a lower population size, and close-knit primary relations. These features shape the identity and dynamics of a village community, fostering a strong sense of community, reliance on agriculture, and a more intimate social environment.