I would say b or d, see what other people think!
Answer:
For example to do something simple you do something in a clear way.
Explanation:
C. Toast. In a toast, people drink in honor of a person
The correct answer is B, a social class. 'Interest groups' have the same interest that influences them. "A political party' is about politics. And D isn't correct as this is not a culture, it is merely a class.