Which of the following is an example of a positive externality in consumption that generates social benefits?

A positive externality in consumption occurs when someone’s use of a good or service benefits others who are not directly involved in that transaction. For example, when a person decides to get vaccinated against a contagious disease, they not only protect themselves but also help prevent the spread of that disease to others in the community. This creates social benefits because more people are less likely to get sick, leading to a healthier population overall. In this case, the positive externality is the increased health and safety for the community, which arises from one individual's choice to get vaccinated. Thus, the action of getting vaccinated has a broader impact beyond just the person receiving the vaccine.