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

<passage>:
on Vega III, where it was control. "And it is true that we can always John Crownwall as he strode exterminate any planet that heavy gravity and heavier air of the unfamiliar planet. he felt distinctly unhappy. Crownwall Crownwall nodded. "In other the job, thought Crownwall, then to Crownwall. "You broke our when you landed here on my capital world. You can do the same on the worlds of the Sunda. Now, just tell us how you did it, and we're partners." Crownwall and unexpectedly to Crownwall, Crownwall all but sagged with "Bunk," said Crownwall. Crownwall. "I want to see Ffallk." our only planet at any time. That is certainly adequate security for there, but I doubt it." "Just tell him that a man has arrived from Earth to talk to him. He'll summon me fast enough. Meanwhile, my highly polished Crownwall sat on the steps, else, by your clumsy distorter drive, we can follow you, and destroy any planet you choose to land on. You would not get away from us. We can track you without any difficulty. said to Crownwall. "Follow me. His Crownwall stamped out his "Nor do I," consented Crownwall. They examined Crownwall with think it's time for you to tell us something about how you get across light-years of space in a few hours, without leaving any traces Crownwall to still Crownwall's immediate in his pockets. "That's hardly possible," he said. "It was only decided yesterday, back on Earth, that I would be the one to make the trip here. Even if you could spy through buildings on Earth from space, which I doubt, your communications system can't get the word through that fast." "Oh, I didn't mean Crownwall nodded. "I don't see why not. Well, then, let me tell you that we don't travel in space at all. That's why I didn't show up on any of your long-range detection instruments. Instead, we travel in time. Surely any race that has progressed as far as your own must know, at least theoretically, that time travel is entirely possible. After all, we knew it, and we haven't been around nearly as long as you home planet only yesterday, that's astonishing even to me. Tell me, how did you manage to get here so it. Still, if you were on your Crownwall. "If you wanted someone around Earth? And why did you drop a planet-buster in the Pacific Ocean, and tell us that it was triggered don't do any meddling. What we have discovered is a way not only of moving back into the past, but also of making our own choice of spatial references while we do it, at will. to Crownwall. "If you couldn't "For example, to reach this Earth as the spatial referent, to move with Earth a little more than a third of the way around this spiral nebula that is our Galaxy. planet, I went back far enough, using Then I shifted my frame of reference member. "Then of course, as I continued to move in time, the whole Galaxy moved spatially with reference to my own position. At the proper instant "I'm listening," said Crownwall. frame of this Galaxy itself. Then I was stationary in the Galaxy, and as I continued time traveling, Master Race." "It would hardly be an equal partnership, would it, considering time intersection of your planet's position and my own. When you got there, I just changed to the reference your own mighty sun moved toward me as the Galaxy revolved. it to the present. So here I am. It was a long way around to cover a net distance of 26 light-years, but it was really very simple. "And there's no danger of meeting situation. As you probably know, theory shows that these are excluded times for me, as is the Crownwall shrugged. "So?" spatial reference frames ourselves. I doubt if you could do it in another two million years." Crownwall time I went back to my ship and drove it home to Earth to make my report, so we can pick up those it is still possible. "Your silly little planet was carefully examined at long range in a "Protocol takes a lot of time," said His Effulgence somewhat sadly, from Earth to break through Galaxy. In all, it has been found only fifteen times. The other races we have watched develop, and develop. It took the quickest of along at seven or eight kilometers an hour, carrying their contraption them just under a million years. "You Earthlings, in defiance of all expectation and all reason, have exploded into space. You have developed in an incredibly short space of time. But even that isn't the most disconcerting item of your development. As an Earthling, you One such race we left uncontrolled with absolute smoothness. Blasts "When the Viceroy of the Seventy Suns," said the Viceroy of the Seventy Suns, "travels in state, no one but my own entourage is permitted Crownwall. "I was to Crownwall. an adventure that had taken place little more than ten years before. The Star Seeker in space, about forty thousand kilometers above the Earth. It had been manned by a dozen adventurous and had headed out on its ion drive until it was safely clear of the warping influence of planetary masses. Then, after several impatient the distorter drive had been activated, for the first time in Earth's history, and, for the too long—but no matter. Ffallk. The bearers trotted 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 been tested. And it had worked. In less than a week's time, if time has any meaning under such circumstances, they had flickered back into normal space, in the vicinity and spoke again to Crownwall. of Alpha Centauri. They had Earth to be its twin sister. They had headed for that planet confidently and unsuspectingly, using the ion drive. swiftly. Crownwall recalled the discussion—the decision. Although far within the dangerous influence of a planetary distorter drive, and they had beaten the odds. On the distorter drive, Crownwall. they had returned to Earth as swiftly as they had departed. Earth had immediately prepared for war Crownwall during the trip, without Crownwall's directions, the transportation machine. The machine, for spatial mobility, was itself and the ships and those of my own race who manned them. We had tried to contact you, but since you had not developed subspace temporal translation and coordination selection systems combined, but it had the great advantage of Crownwall climbed into his was out of the atmosphere, before starting his enormous journey through time back to Earth. More quickly than it had taken him to reach his ship from the palace of landing on Earth and taking us over?" asked Crownwall. "Would that have been so bad?" and uncontrolled in the Galaxy. Once was enough for that." "But what about my question? it took us a little time to react. We located your planet quickly enough, and confirmed that you were a new race. But by the time we could try to set up communications and of time before they'll find some ships as fast as we could send them down to your planet. And by the time we had organized they seem," answered Crownwall way around it, and then—poof—we'll all be dust." properly for war against you, it was down into Vega III's atmosphere is, that we might be useful to each other. I traveled halfway across the Galaxy to meet him, to convince him that it would be sufficient just to quarantine you. Galactic tongue, and had managed to get what you call the way for you to get off the planet. Even if you could get down to the Crownwall. "Our enemies are all one of you amazing Earthlings would dream up some device or other, head out into space, and show up on our planet. So I've been am," said Crownwall. "So what's for revenge. And now that you have entered space, that opportunity is at hand." "If you haven't been able to help yourselves for two million years," asked Crownwall, "how does the at a soothing wave from His Effulgence. "War in space is almost an impossibility," said the aged ruler. "We can destroy planets, of course,

<question>:
How did Crownwall get to Vega III so quickly?

<options>:
A FTL (Faster than Light) drive
B Transport Beam
C Warp drive
D Time travel

<answer>:

D