Why does the government oversee the provision of public goods?

A.
Public goods and services require resources in production that are scarce; therefore, the government must ensure that production is limited.
B.
Public goods are goods and services that tend to result in negative externalities; therefore, the government must oversee that the provision of these goods and services is limited.
C.
Public goods are goods and services that are non-excludable and rivalrous. The government must oversee the fair distribution of these goods; otherwise, they would be distributed on a first-come, first-serve basis.
D.
Public goods are goods and services that are non-excludable and non-rivalrous; therefore, it is not profitable or in the best interest of private businesses to provide these goods.

D.

Public goods are goods and services that are non-excludable and non-rivalrous; therefore, it is not profitable or in the best interest of private businesses to provide these goods. The government oversees the provision of public goods to ensure that they are provided fairly and to prevent undersupply due to the free-rider problem.