Answer:d. youth subculture identification.
Explanation:
A youth subculture refers to the subcultures that youth forms based on their similar styles,interest and behavior. Apart from being part of social institutions such as your biological family ,home,schools and work people also find their indentity through grouping themselves with those who share similar tastes in things. Some youth subcultures are formed in order to go against those norms that the youth doesn't consider to be valuable to them and those are usually referred to as countercultures.
The most thing that the youth also shares is the music genres such as hip hop. It could also be the way they dress up which symbolises something they commonly share.