In the context of any country, which one of the following would be considered as part of its social capital?

1. Social capital refers to the networks of relationships among people who live and work in a particular society, enabling that society to function effectively. It involves aspects like trust, norms, networks, and cooperation. 2. Option (A), the proportion of literates, relates to human capital (skills and knowledge). 3. Option (B), the stock of buildings, infrastructure, and machines, represents physical capital. 4. Option (C), the size of the population in the working age group, relates to demographic factors and labor supply (part of human capital). 5. Option (D), The level of mutual trust and harmony in the society, directly reflects the quality of social relationships, norms of reciprocity, and shared values that facilitate cooperation – key components of social capital. 6. Therefore, the level of mutual trust and harmony is considered part of social capital.