Answer:
D None of the above
Explanation:
Social class:
It is a class where a group of people lives in a society with no difference between the social-economic status of people. It can be described as where a group of people shared their SES and this group has been used in research and censused of a country. The word class has come in the 19th century before this word-class there was a present word like rank, order that categorizes the social status of a group of people.
Carl Marx, Max Weber, these were the sociologist who worked on the society. There is such type of class status:
Answer: Their son chose this group because he shares their interests.
Though the answer isn't too obvious, it makes sense.
Hope this helped :)
Answer:
A manipulated variable is the independent variable in an experiment. It's called “manipulated” because it's the one you can change