Answer:
B. a private good or a club good.
Explanation:
People can be prevented from using a private good or a club good because they are excludable goods.
Excludable goods or services are goods that public can be prevented from using or enjoying. On the contrary, non excludable goods are those goods and services that it is impossible to prevent the public from using/enjoying. Examples of excludable goods are private properties such as a personal phone, fish in a fish farm, the services of a gym or golf club. examples of nonexcludable goods are fish in a public river, the services of the police, a concert on a national television network.
