![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
Research into new technologies provides a
A.
negative externality, and too few resources are devoted to research as a result.
B.
negative externality, and too many resources are devoted to research as a result.
C.
positive externality, and too few resources are devoted to research as a result.
D.
positive externality, and too many resources are devoted to research as a result.