Answer:
The correct option is : d. is a matter of inequality and beliefs about why people should be unequal.
Step-by-step explanation:
Social stratification is defined as a system of social ranking in a society. In this system, the people are categorized in groups and ranked on the basis of their socioeconomic status.
The four principles of social stratification are:
1. It reflects the differences between the various groups in a society. It does not reflect the differences between individuals.
2. It is present in every society but varies from place to place.
3. It gets carried on to the next generations.
4. It includes inequality and difference in the beliefs between the various groups of the society.