In recent years, the demand for biofuels has increased rapidly, and global ethanol production has tripled between 2000 and 2007, and its output will double again by 2017, and biodiesel production will more than double within 10 years. It is produced by grain, sugar and oil crops such as corn, so the expansion of its output will inevitably lead to a surge in the price of related crops. If the above view is correct, may it be rolled out? ['Rising agricultural product prices will lead to lower biofuel production.', 'If the price of agricultural products falls, then biofuel production has not increased.', 'If the production of biofuels declines, then the price of agricultural products will increase.', 'Increased production of biofuels such as ethanol is affected by low agricultural prices.']