The correct answer to this open question is the following.
A Functional Sociologists views a formal social structure like the
Indian Caste System as a system that had a purpose in that time, as part of the social, economic, and political presence in India.
Functionalists sociologists believe that all the norms, institutions, and rules in society serve a particular purpose. In this case, all the parts of the system had to work together, in harmony, to provide the results needed.
Let´s remember that the Caste System was very rigid in India, and people had no chances to change their status. In a caste system such as the implemented in India, people could have specific talents but they could not develop them. They were assigned tasks that had to be done all his life.