Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
world requires for a healthy and The sight of an Earthman on Vega III, where it was fired. The arrow hissed briefly, and exterminate any planet that refuses to obey the just and legal to be, brought angry crowds to surround then sliced smoothly through the "And it is true that we can always orders of its Viceroy. So we achieve heavy gravity and heavier air of were unable to take over the surrounded by this writhing, slithering of destroying them, and thereby If they carried out the threats of their present attitude, Earth would with civilians who violate this particular have to send Marshall to replace blockade without any trouble. Our unconcern that he felt sure was entirely wasted on these monsters. The clashing teeth of the noisiest of them were only inches from the pikes in front of him as he would arrange something a little more trustworthy, I believe. On your side, you have the power to destroy our only planet at any time. That to destroy all of your planets. As at once, a hundred of your planet-destroying bombs. That will be a sufficient supply to let us test some of them, to see that they are in arrived from Earth to talk to him. He'll summon me fast enough. Meanwhile, my highly polished you cannot prevent—to send one of those bombs here to destroy this planet. "And if you try to move anywhere else, by your clumsy distorter don't you put those heavy pikes drive, we can follow you, and destroy any planet you choose to from us. We can track you without any difficulty. "We wouldn't use the bombs land on. You would not get away would happen to Earth. And don't think that blowing up our planet would save you, because we naturally wouldn't keep the bombs on guards withdrew their pikes and froze into immobility at the sides of the entrance. Effulgence commands you to appear before him at once." The two Earth. How does that sound to "Impossible." get an opportunity to use. It delay. Meanwhile, I see no reason why we cannot proceed with "It's customary to genuflect you to be ignorant of those niceties exclamation of protest. "Oh, communications system can't get Race." in particular," you that we don't travel in space fast, and without even alerting my detection web?" useless—and very dangerous—knowledge." "So have we, up until the time you planted that bomb on us. Anyone you, why did you put the cordon drop a planet-buster in the Pacific Ocean, and tell us that it was triggered to go off if we tried to use the distorter drive? That's hardly the action of somebody who expects visitors." you have just had demonstrated at will. "For example, to reach this planet, I went back far enough, using inconveniences I put in your way, for me?" of these finer points of etiquette and propriety. They are really an uncouth bunch. Why, do a hundred Satrapies these average you know, I am certain that they for your own safety?" asked "I don't get it. Why?" lucky to have learned how to control upstart Earthlings are a strange and a frightening race," he said. "Frightening to the Sunda, especially. was even serious discussion of destroying Earth out of hand, while it is still possible. "Your silly little planet was carefully examined at long range in a shrill two-tone note, using both his speaking and his eating orifices. A cohort of troops, pikes at the ready classed among the intelligent races, lack of civilization. While these there was a general expectation, Down this lane, carried by twenty along at seven or eight kilometers One such race we left uncontrolled an hour, carrying their contraption with absolute smoothness. Blasts in an incredibly short space of time. But even that isn't the most disconcerting item of your development. As an Earthling, you without requesting permission, and and had headed out on its ion drive until it was safely clear of the warping influence of planetary masses. Then, after several impatient days of careful study and calculation, the distorter drive had been activated, for the first time in Earth's history, and, for the twelve, the stars had winked out. The men of Earth had decided that it should work in theory. They had built the drive—a small machine, as drives go—but they had never dared to try it, close to a planet. To do so, said their theory, would usually—seven point three four times out of 10—destroy the ship, and everything in space for thousands of miles around, in a ravening burst of raw energy. So the drive had been used for the first time without ever having been tested. And it had worked. His Effulgence beckoned to the "That's the trouble with these requirements with such things as pikes and bows and arrows, which they seldom Earth to be its twin sister. They had headed for that planet confidently and unsuspectingly, using the ion drive. Two weeks later, while they were still several planetary diameters can't provide them with live targets would never do for them to use had been shocked to find more than two score alien ships of space were swifter and more maneuverable closing in on them—ships that a shudder of distaste. "Tell me, Your Effulgence, does the Emperor's "Oh, no. They are far too brutal, too morally degraded, to know anything then tried to herd it away from the planet it had been heading toward. Although caught by surprise, would have had the bad taste to use an energy weapon to dispose of the victim in a case such as you just witnessed! They are really quite unfit to rule. They can scarcely dangerous influence of a planetary mass, they had again activated the distorter drive, and they had beaten the odds. On the distorter drive, they had returned to Earth as swiftly as they had departed. Earth had decision. Although far within the interrupting the smooth progress bloody-minded Earthlings must have been aware of the terrible danger." procession arrived at the copse in which he had concealed his small transportation machine. The machine, for spatial mobility, was equipped with the heavy and grossly inefficient anti-gravity field generator developed by Kowalsky. It could also have wrecked the planet all who live on that planet. You selection systems combined, but it had the great advantage of being almost undetectable in use. It emitted no mass or radiation. After elaborate and lengthy farewells, just a routine quarantine. With machine and fell gently up until he was out of the atmosphere, before starting his enormous journey your total lack of information and uncontrolled in the Galaxy. Once was enough for that." stay free?" "Well, no. But you didn't have enough information to realize that from what you say, I'd rather be in bed with a rattler than have a treaty with a Vegan. They sound ungodly murderous to me. There are too many holes in that protection Your drones blew up our unmanned ships as fast as we could send them down to your planet. "Things may not be as bad as obvious that we could not conquer deliberately just to quarantine you. managed to get what you call the 'planet-buster' down into the "With his usual lack of imagination, to the President and began to speak rapidly. "They're gone without trace— Even if you could get down to the bottom of the ocean and tamper with the bomb, you would only succeed in setting it off, and that's all of them !" he cried. "I went clear to Sunda and there's no sign of intelligent life anywhere! We're all down?" will be able to use our own methods—which expert smoke rings toward the to their position of power. Our race Transcriber's Note: This etext was produced from guards. as to remain on the street and intolerable situation. for revenge. And now "War in space is almost an impossibility," them, but I don't let them intermingle. large-scale assaults that would result as your little Earth can defend itself. "Naturally, each is vulnerable to economic blockade—trade provides a small but vital portion of the goods each planet uses. All that a

<question>:
Why is the distorter drive so dangerous?

<options>:
A The distorter drive has a seventy-three percent chance of destroying everything around it for thousands of miles.
B The distorter drive has not been thoroughly tested.
C The distorter drive is powered by a nuclear reactor.
D The distorter drive is radioactive.

<answer>:

A