![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
The author advises consumers to______.
A.
look for foods with such words as 'certified organically grown'
B.
grow their own food without synthetic chemicals
C.
buy foods from a seller they often deal with
D.
make sure the foods are pesticide free before buying them