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

<passage>:
THE GIANTS RETURN By ROBERT ABERNATHY back to the stars. But they erred in thinking the Old Ones were too big to be clever. [Transcriber's Note: This etext was produced from Quest Quest III Quest I Quest III Quest Quest III's Quest lie at the long journey's end. For the Quest III was coming home the Quest III's the voyage's beginning eighty per cent of the fifteen-hundred-foot cylinder had been engines and fuel but as the immense stores were spent and the holds became radioactively safe, the crew had spread out from its original cramped quarters. Now the interstellar ship was little more than a hollow shell. Eyes lifted from the vision screens to interrogate Knof Llud have happened to Earth? After all, it's only been nine hundred years." "That's just it," said Lesra shakily. "Nine hundred years have gone by— within him. He let his arm fall. "I'd better get up to the bridge. There's a new course to be set now—for Earth." his extrapolations from long unused charts of the Solar System. He had already set up on the calculator a course that would carry them to Earth. Llud nodded curt approval, remarking, "Probably we'll be intercepted before we get that far." Quests returned successful, or if they returned at all. And we don't know what changes have taken place on Earth. It's possible—not likely, though—that something has happened to break civilization's continuity to the point where our expedition has been forgotten altogether." notify him as soon as Earth's surface features became clear then he sat idle, alone with his thoughts. Quest III's Earth years—though physically he was only forty now, ten years older than when the voyage had begun. That was the foreshortening along the time axis of a space ship approaching the speed of light. Weeks and months had passed for the Quest III in interstellar flight while years and decades had raced by on the home world. Bemusedly Llud got to his feet and stood surveying a cabinet with expedition, a segment of his life and of history. He might add that to the ship's official log and its collections of scientific data, as a report to whatever powers might be on Earth now—if such powers were still interested. confident than he knew it was now. "One light-day out from Procyon, the thirty-third day by ship's time since leaving Earth. "Our hopes were dashed—and I think all of us, even remembering the Centaurus Expedition's failure, hoped more than we cared to admit. If Procyon had possessed a habitable planet, we could have returned after an absence of not much over twenty years Earth time. "It is cheering to note that the crew seems only more resolute. We go on to Capella its spectrum, so like our own Sun's, beckons. If success comes there, a century will have passed before we can return to Earth friends, relatives, all the generation that launched the Quest "We face the unpleasant realization that what was feared is probably true—that worlds such as the Sun's are a rare accident, and that we may complete our search without finding even one new Earth. "It makes no difference, of course we cannot betray the plan.... This may be man's last chance of escaping his pitiful limitation to one world in all the Universe. Certainly the building of this ship and its two sisters, the immense expenditure of time and labor and energy stores that went into them, left Earth's economy drained and exhausted. Only once in a long age does mankind rise to such a selfless and transcendent effort—the effort of Egypt that built the pyramids, or the war efforts of the nations in the last great conflicts of the twentieth century. "Looked at historically, such super-human outbursts of energy are the result of a population's outgrowing its room and resources, and Quests . Perhaps our effort will prove as futile as pyramid-building, less practical than orgies of slaughter to reduce pressure.... In any case, it would be impossible to transport very many people to other stars but Earth could at least go into its decline with the knowledge that its race went onward and upward, expanding limitlessly into the Universe.... Quest III Earth. Now we turn back along a curve that will take us past many more stars and stellar systems—but hope is small that any of those will prove a home for man, as have none of the thousands of stars examined there if anywhere must circle the planets we seek! But Omega Centauri is twenty thousand light years away.... "Even so—by expending its remaining fuel freely, the Quest III could achieve a velocity that would take us there without dying of senility of aging too greatly. It would be a one-way journey—even if enough fuel remained, there would be little point in returning to Earth after more than forty thousand years. By then our civilization certainly, and perhaps the human race itself, would have perished from memory. "That was why the planners limited our voyage, and those of the other Quests , to less than a thousand years Earth time. Even now, according to the sociodynamic predictions made then, our civilization—if the other expeditions failed also—will have reached a dangerously unstable phase, and before we can get back it may have collapsed completely from overpopulation. "Why go back, then with the news of our failure? Why not forget about Earth and go on to Omega Centauri? What use is quixotic loyalty to a decree five thousand years old, whose makers are dead and which may be forgotten back there? "Would the crew be willing? I don't know—some of them still show signs of homesickness, though they know with their minds that everything that was once 'home' has probably been swept away.... To sail beyond the sunset, and the baths Of all the western stars, until I die. turn back. The stars had claimed his heart—but he was still a part of Earth, and not even nine hundred years of space and time had been able Quest III's interstellar ship. Knowing that Gwar Den was still there, he said, "Now—attacked by what?" Quest III's Quest III but it plunged on toward Earth, its mighty engines still steadily braking its interstellar velocity. Quest III's Quest III wait for us. But why on Earth—" "That," said the captain grimly, "is what we have to find out. Why—on Earth. At least, I suspect the answer's there." The Quest III Quest III's Quest III Quests might have encountered and been traced home by some unhuman race that was greedy and able to conquer. constant arrival of fresh attackers, while others raced away into space, presumably returning to base to replenish their ammunition. That argued a planned and prepared interception with virulent hatred behind it. Elsuz Llug, the gravitic engineer, calculated dismally, "At the rate we're having to shed energy, the fuel will be gone in six or eight hours." "We'll have reached Earth before then," Gwar Den said hopefully. "If they don't bring out the heavy artillery first." "We're under the psychological disadvantage," said the captain, "of not audio carrier wave that shifted through a wide range of frequencies, repeating on each the same brief recorded message: "Who are you? What do you want? We are the interstellar expedition Quest III Quest III his ship. Zost Relyul approached him apologetically. "If you have time, Captain—I've got some data on Earth now." last. The two other interstellar expeditions that went out have already returned and been destroyed, as you will soon be—the sooner, if you continue toward Earth." from Earth, relayed by one of the midget ships—was not very smart it had already involuntarily told him a couple of things—that it was not Quest III's ponderous and unswerving progress toward Earth had somehow

<question>:
What were the two main goals of the Quest III ship in this story?

<options>:
A To survey galaxies for non-human life forms and return to Earth safely.
B To scout for new worlds to live in and return to Earth safely.
C To stay away from Earth for 900 years during a major world war and to return back safely.
D To return safely to Earth and return with new raw materials for technological research.

<answer>:

B