Grain can be traded in the futures market before harvesting. If rice production is predicted to be insufficient, rice futures prices will rise; if rice production is predicted to be rich, rice futures prices will fall. Suppose this morning that meteorologists predict rice production from tomorrow There will be moderate rainfall in the region. Because sufficient humidity is very important for the current growth of rice, today's rice futures prices will drop significantly. Which of the following, if true, would most seriously undermine the above point? ? ['Agriculture experts announce today that a rice germ is spreading.', 'Rice futures prices fluctuated more violently this quarter than in the previous quarter.', "Tomorrow's rainfall estimates predicted by meteorologists are likely to extend beyond cereal producing areas.", 'Grains that do not receive enough moisture at the critical pollination stage will not yield a good harvest.']