Locust swarms have ravaged much of Suwathia, resulting in the loss of vital agriculture. A multinational company has recently proposed using metarhizium, a fungus that invades the exoskeleton of the locust, causing a swift death. The government of Suwathia argues that the one means of application of metarhizia-from an airplane-will require a great amount of the fungus, which is difficult to acquire. Given that the locusts propagate rapidly, the government maintains that only a complete annihilation of a locust swarm will have the desired effect. Which of the following, if true, best argues in favor of the multinational company's plan to drop metarhizium over locust swarms? ['Some swarms of locust can cover over 100, 000 square miles.', 'If all of the locusts are not destroyed, Suwathia will lose millions of acres of crops.', 'Only one metarhizia-infected locust is necessary to lead to the demise of an entire swarm, since metarhizia can easily spread within a swarm.', 'An airplane must fly several kilometers ahead of a swarm of locusts to ensure that the metarhizia is correctly deployed upon the rapidly moving swarm.']