Humans use great amounts of synthetic pesticides and herbicides in their lawns and gardens. These toxic chemicals can contaminate the soil, kill many beneficial microorganisms living in soil, and pollute groundwater and nearby lakes and oceans.

Which of the following would be the most helpful in solving these problems?
A.
Use greater amounts of synthetic herbicides and lesser amounts of synthetic pesticides.

B.
Use greater amounts of synthetic pesticides and lesser amounts of synthetic herbicides.

C.
Use natural, organic herbicides and pesticides instead of synthetic versions.

D.
Use synthetic pesticides only on weekdays, and use synthetic herbicides only on weekends.