The correct answer is: Nurture
Explanation:
Sociology, in simple words, is the study of society. Society is made up of people, and society shapes the way of living, thinking, acting etc. In other words, society is the agent for the socially constructed behaviour. Most of the things we learn like language, walking etc (nurture). These are not the innate (natural) properties we have. Nurture is the development of the person (belonging to a society). Hence, sociologists would tend to emphasize on nurture.