Please choose the correct answer to the question: Genetically modified plants with new characteristics have been produced through genetic engineering methods. What impacts have resulted from the use of genetically modified plants?

Answer1: decreases in farm production Answer2: decreases in corn, soybean, cottonseed, and canola oils Answer3: increases in time required to plant, grow, and harvest crops Answer4: increases in resistance to herbicides, insects, and viral diseases

Answer format: answer1/answer2/answer3/answer4
Answer: answer4