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

<passage>:
Westover got a shock when he stumbled onto the monster, for all that he He had not sought in his mind for the flood's cause, but had merely Westover stood motionless in the blackness all soon to be hidden by the rising flood. For a moment he knew despair. The way back was impassable, and the way nights without stopping came to his rescue. Westover plodded forward, to be climbed. Westover felt poignantly that his exhausted body could Westover had been one of the men who, in the days when humanity was Westover no longer saw the murky moonlight, the far faint glitter of the same reason they have achieved what even intelligent cellular life so far hasn't—liberation from existence bound to one world's surface, the conquest of space. They accomplished it not by invention but by adaptation, as brainless life once crawled out of the sea to conquer the dry land. of a long evolution completed in space itself. They are evidently deep-space beings, able to propel themselves from planet to planet and from star to star in search of food, guided by instinct to suns and worlds like ours. Descending on such a planet, they move across its surface systematically ingesting all edible material—all life not mobile enough to avoid their march. They are like caterpillars that overrun a planet and strip it of its leaves, before moving on to the next. "Man is a highly mobile species, so our direct casualties of this invasion have been very light and will continue to be. But when the for man's food, no houses, no cities, none of the fixed installations of civilization, and the end will be far more terrible than if we were Westover awoke, feeling himself bathed by the cold sweat of idea for stopping the monsters. He sat up, eyes searching the sky for a sign to tell him how long he Even as Westover began frantically climbing, out of that lightening phototropic urge which must guide these things out of the interstellar depths to Sun-type stars. All of them had crept endlessly eastward around the Earth, gutting the continents and churning the sea bottoms, and by now whatever was left of human civilization must be starving beyond the Arctic circle, or aboard ships at sea. The hordes that For a man like Westover, who had been a scientist, it was not the human pride, the star-storming pride of mind and will—defeated by kind. But he knew with desperate clarity that by nightfall, when the beast became still once more, exhaustion and growing hunger would have steadily deeper until death. Isolated thoughts floated through his head. It occurred to him that he was now ideally located to conduct the experiments necessary to prove his theory of how to destroy the monsters—if only someone had had the foresight to build a biological prediction had been a hundred percent correct. The monsters' hunger knew no halt until they had absorbed into themselves all the organic material on the world which was their prey.... And men must starve, as he was starving now.... With a struggle Westover roused himself, first sitting up, then swaying thing's surface round about. Westover laughed wildly with a sudden in the basic chemistry of proteins, fats and carbohydrates one with man or the amoeba, and therefore might be—food. His matches were dry in their water-proof case he made a smoldering or perhaps merely the motion of the creature brought on nausea, but he fought it sternly back and succeeded in keeping his strange meal down. Then he was tormented by thirst. It was some time, though, before he protect him from the sun's baking, merely that he was chained to the only source of food he knew in all the world—not just that he was developing a flea's psychology. He was a man and a scientist, and he steady, ravenous march to the east. But there was no motion the great Westover's mind was beginning to function again The monster on which Westover had been living as a parasite was that blue headland could be only a land made desert, where men become Westover sat for a space with head in hands, hearing the faint faint eructations deep inside the monster. Then he sprang to his feet, gripping his hand-ax, and ran panting to the place where he had dug for food. His excavations tended to close and heal overnight now he went to work with vicious strokes enlarging the latest one, hacking and tearing it deeper and deeper. He was almost hidden in the cavity when a shadow fell across him from "Who are you?" asked Westover, breathlessly but almost without surprise. Westover hesitated. "I'm not just imagining you?" he appealed. "Somebody else has really found the answer?" The Preacher's brows knitted faintly, but then his look turned to benevolent understanding. "You have been alone too long here. Come with Westover was still not sure that the other was more than one of the into utter blackness—Westover knew that both the Preacher and his own and Westover nodded this time with alacrity. and Westover climbed to his feet and stood, weak-kneed still, staring But he brushed aside the deferential offers of the others: "No—I will take him to the Doctor myself. All of you must hurry now to close the shaft." told Westover better than words that there was something hugely he and Westover froze in dumbfounded recognition. quick eyes studied Westover's face, and he gestured toward a packing "I stumbled onto it," Westover admitted. "I was wandering across bug hunt dreamed up by somebody who'd been reading Wells' War of the Westover finished the brief account of his coming to dwell on the "I haven't got so far with the theory," said Westover, "but I think plants and their by-products—was our way of life, as of all animals from the beginning. But the monsters absorbed into themselves all the plant food and even the organic material in the soil. So we have only one way out—to transfer our parasitism to the only remaining food source—the monsters themselves. "The monsters almost defeated us, because of their two special new ones as the need arose. The greatest crisis humanity ever faced called for the most radical innovation in our way of life." "Very well put," approved Sutton. "Except that you make it sound easy. "It is inhabitable?" Westover's question reflected no doubt. hit on the catalyst that makes their blood give up its oxygen—that's its blood flowing through the filters. We've got an electric generator running by tapping the monster's internal gas pressure. There are problems left before we'll be fully self-sufficient here—but the all the elements human life needs too." "Then," Westover glanced appreciatively around, "it looks like the main Raubtier —if he ever existed—has to be replaced by the manage to—infect—when they're clustered again in space." "For the future," put in the Preacher, who had watched benignly the biologists' reunion, "the Lord will provide, even as He did unto Jonah when he cried to Him out of the belly of the fish." "Amen," agreed Sutton. But the gaze he fixed on Westover was oddly Westover flexed his hands involuntarily, like one who has been too the plan that had burned in him during his bitter wandering over the face of the ruined land. It would be very easy to accomplish the creature's blood over a long period enough of some potent secretion—hormone, enzyme or the like—to kill when suddenly reintroduced into the system. "Originally I thought we could accomplish the same thing by synthesis—but this way will be simpler." Westover stared. "Why?" "No! Of course I realize—Well, I see what you mean—I think." Westover spend thousands of years in interstellar space during that time they'll be living exclusively on their fat—the fuel they stored on Earth, and so will we. We've got a whole new history of man ahead of us, under such changed conditions that we can't begin to predict Westover bowed his head, but he had caught a curiously expectant glint

<question>:
What was not one of Westover's goals in this passage?

<options>:
A To find a way to kill the monsters
B To negotiate with the monsters
C To find some other people
D To locate a new food supply

<answer>:

B