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

Correct Answer: The level of mutual trust and harmony in the society

Understanding Social Capital:

Social capital refers to the networks of relationships, shared values, mutual trust, norms, and understanding within a society that enable individuals and groups to cooperate effectively and live together harmoniously.

Breaking Down the Concept:

1. Mutual Trust and Harmony: Strong social networks, high levels of trust, and social cohesion reduce transaction costs, foster community cooperation, and enhance civic participation. Hence, "The level of mutual trust and harmony in the society" directly defines social capital.

2. Human Capital vs. Physical Capital:

- The proportion of literates in the population and the working-age population relate to Human Capital (the skills, knowledge, and labor potential of people).

- The stock of buildings, infrastructure, and machinery represents Physical Capital.

Conclusion:

Therefore, among the given choices, the level of mutual trust and harmony within society is considered a key component of a country's social capital.