According to functionalist theory, which of the following best explains the existence of social inequality?

Functionalist theory suggests that social inequality exists because it serves a purpose in society. According to this perspective, different roles and positions in society require different levels of skill and responsibility. For example, a doctor has a more complex job than a cashier, and society rewards the doctor with higher pay to encourage people to pursue difficult and necessary professions. This inequality helps ensure that all important roles are filled, maintaining stability and order in society. Therefore, functionalists believe that inequality is not only inevitable but also beneficial for the functioning of society as a whole.