The correct answer is (d) Parsons.
Talcott Parsons was an American sociologist who is considered one of the most influential thinkers in the field. He developed a theory of social action that emphasized the importance of shared values and norms in maintaining social order. Parsons also argued that schools play a key role in socializing children into the values and norms of society.
Davis, Althusser, and Durkheim were also important sociologists, but they did not specifically focus on the role of schools in socialization. Davis was a structural functionalist who emphasized the importance of social institutions in maintaining society. Althusser was a Marxist who argued that schools are part of the ideological state apparatus, which is used to reproduce the capitalist system. Durkheim was a functionalist who argued that schools play a key role in promoting social solidarity.
In conclusion, Parsons is the correct answer because he specifically focused on the role of schools in socialization. Davis, Althusser, and Durkheim were also important sociologists, but they did not specifically focus on this topic.