Answer:
A.they facilitated a normadic lifestyle
Demographics is statistical data of a population. This can include how many people of each gender in a certain population, the occupations of the people, and basically anything that is statistical data.
Having a sense of community unites people. Being a part of a community can make us feel like we are a part of something valuable and greater than ourselves. It gives us an opportunity to connect with people, to reach for our goals, to make us feel safe and secure, and to realize that we’re not alone or too different from everyone else. it’s very important for everyone to have a sense of community.