Positive externalities in a market can be compared to which of the following scenarios in terms of social benefit versus private benefit? A:B :: C:?

Positive externalities occur when a person's or company's actions benefit others who are not directly involved in the transaction. This can be compared to the scenario of public parks. Just as a public park provides joy and relaxation to everyone in the community, even if they don't pay for its upkeep, positive externalities create a situation where the social benefit is greater than the private benefit. For example, if a company invests in training its employees, the skills they gain not only help the company but also contribute positively to the community as those employees become more productive and engaged citizens. Therefore, the relationship can be summarized as A:B :: Public Parks:Positive Externalities.