Answer:
A
Explanation:
The privately-owned school system in Smalltown generates positive externality to members of SmalltownA good has positive externality if the benefits to third parties not involved in production is greater than the cost. an example of an activity that generates positive externality is research and development. Due to the high cost of R & D, they are usually under-produced. Government can encourage the production of activities that generate positive externality by granting subsidies.
The free rider problem is a form of market failure. It occurs when people benefit from a good or service of communal nature and do not pay to enjoy these services.
The free rider has caused a decline in revenues and did not cause the private market to undersupply education to the community