Which statement best describes how the two techniques differ in reducing fungal infestations of crop plants? a) fungicides kill plants infected with fungi, while genetic engineering modifies fungal dna. b) fungicides kill the source of food for fungi, while genetic engineering to make fungi-infected plants edible. c) fungicides interfere with fungal growth and reproduction, while genetic engineering produces plants resistant to fungi. d) fungicides change fungal dna, while genetic engineering the crops and the fungi to form a symbiotic relationship.