Which of the following is a modern farming method?

The correct option is B

Use of HYV seeds

Modern farming method consists of the use of High Yielding Variety seeds and use of chemical fertilizers. Hence the correct answer is option d. High Yield Variety (HYV) seeds were developed by scientists to improve food supplies and reduce famine in developing countries. These HYV or ‘miracle’ seeds can produce up to ten times more crops than regular seeds on the same area of land.