Fracking is a way to obtain oil and natural gas trapped in rock. During fracking, a mixture of water, sand, and chemicals are forced into the rock,
causing it to fracture and release the natural gas or oil it contains. Fracking
can harm the environment when it releases water pollution or air pollution
How could scientists best cooperate to use scientific research to prevent this
problem?

A. They could reduce their use of fossil fuels to decrease the demand for fracking.

B. They could avoid fracking when they are studying the environment

C. They could agree to use only fossil fuels from sources other than fracking.

D. They could develop technologies that help prevent the release of pollutants while fracking.