Answer:
c) ethnocentrism
Explanation:
-Culture shock refers to the disorientation people feel when they are exposed to a different culture.
-Culture relativism is the idea that each society should be evaluated in terms of its own culture instead of being judge by the terms of another one.
-Ethnocentrism is when people judge another culture and think that their own is superior.
-Symbolism refers to using marks or signs to represent an idea.
According to this, the answer is that this is an example of ethnocentrism because the teenagers judge the older groups and believe that their generation is superior.