The correct answer is subculture
The notion of subculture is quite common in sociology and anthropology. The concept is used to refer to a group of people, usually a minority, with a set of specific characteristics (behaviors and beliefs), which represents a subdivision within a dominant culture of your community.
In order for us to better understand the concept of subculture, it is first important that we know what culture means. And for that we must make an analysis as to the broader notion of that term.
