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Which of the following are true of organic farming?

(I) Crops can be labeled as certified organic after 1 year of being grown in areas free of prohibited substances.
(II) Organic farming can include genetically modified crops if they are free of prohibited substances.
(III) Organic farming enhances the health of the soil.
(IV) Organic farming is more successful when the farm mimics a natural ecosystem.

A

I, II

B

I,II, III

C

III, IV

D

II, III and IV

E

I, II, III, IV

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