![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
According to some environmentalist, the oil companies
A.
are further polluting the air by using more oil than clean energy.
B.
are not really concerned with solving the problem of pollution.
C.
are attempting to reduce the pollution they have done to the air.
D.
are in need of research and equipment in pollution prevention.