The correct answer is C. Stratification is a characteristic of a society, rather than a reflection of individual differences.
Step-by-step explanation:
A system of stratification refers to a social classification that organizes individuals into different social classes that form a hierarchy, this implies in a society certain individuals own more power than others as they are at the head of the hierarchy. In the case of the United States society as explained in the text white men tend to be higher in the hierarchy in contrast to black people.
This is a general system supported by many sociologists and despite there are people like Oprah Winfrey or Toni Morrison that contradict this rule, stratification is described according to all society and not according to individuals, which means few black people in the power does not change that most black people belong to low social classes. Therefore, a counterpoint to the argument is that "Stratification is a characteristic of a society, rather than a reflection of individual difference" because this shows specific examples do not change the general situation.