Monoculture carries great risks. A single disease or pest can wipe out swathes of the world's food production, an alarming prospect given that its growing and wealthier population will eat 70% more by 2050. The risks are magnified by the changing climate. As the planet warms and monsoon rains intensify, farmlands in Asia will flood. North America will suffer more intense droughts, and crop diseases will spread to new latitudes.
Which of the following is the most logical, rational and crucial message given by the passage?
- Preserving crop genetic diversity is an insurance against the effects of climate change.
- Despite great risks, monoculture is the only way to ensure food security in the world.
- More and more genetically modified crops only can save the world from impending shortages of food.
- Asia and North America will be worst sufferers from climate change and the consequent shortage of food.
The correct option is A.