![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
The provision of a public good generates a
A.
positive externality, as does the use of a common resource.
B.
positive externality and the use of a common resource generates a negative externality.
C.
negative externality, as does the use of a common resource.
D.
negative externality and the use of a common resource generates a positive externality.