Which of the following is a characteristic of public goods that leads to the free rider problem?

Public goods are things that everyone can use without reducing their availability to others, like clean air or national defense. This means that once these goods are provided, it’s hard to stop someone from using them, even if they didn’t help pay for them. This leads to the free rider problem, where some people enjoy the benefits of the good without contributing to its cost. For example, if a community builds a park, everyone can use it, but not everyone might donate money for its upkeep, relying instead on those who do. Because of this, there may be less incentive for individuals to pay for or support public goods, which can lead to underfunding or lack of provision for important services.