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

<passage>:
"A Welshman takes a lot of killing," Evans answered. Later, in Evans' tractor, he was telling his story: "... And I don't know how long I sat there after I found the water." He looked at the Goldburgian device he had made out of wire and tubing. remembered that, of course, I remembered that it can be separated with electricity. So I built this thing. "It runs an electric current through water, lets the oxygen loose in the room, and pipes the hydrogen outside. It doesn't work automatically, of rest was promissory notes and grubstake shares. When he was broke, which was usually, he used his tractor to haul uranium ore and metallic sodium claim." "Claim?" "Sure, man, I've thousands of tons of water here. It's the richest mine on the Moon!" THE END make it. By careful rationing, he could probably stretch his food out to more than a month. His drinking water—kept separate from the water in comes from the generator." "Why isn't the generator working, man?" he asked. He thought this one out carefully. The generator was not turned by the main turbine, but by a small reciprocating engine. The steam, however, came from the same boiler. And the boiler, of course, had emptied itself through the hole in the turbine. And the condenser, of course— "The condenser!" he shouted. He fumbled for a while, until he found a small flashlight. By the light of this, he reinspected the steam system, and found about three gallons of water frozen in the condenser. The condenser, like all condensers, was a device to convert steam into water, so that it could be reused in the water in the condenser began to boil. This boiling lowered the temperature, and the condenser demonstrated its efficiency by quickly the shut-off valves. If there was any water in the boiler, it would operate the engine that drove the generator. The water would condense in the condenser, and with a little luck, melt the ice in there. Then, if the pump wasn't blocked by ice, it would return the water to the boiler. water that he had poured into the boiler quickly turned into steam, and the steam turned the generator briefly. Evans watched the lights flicker and go out, and he guessed what the trouble was. "The water, man," he said, "there is not enough to melt the ice in the condenser." used. It was one day's supply if used wastefully. It was ostentatious luxury for a man with a month's supply of water and twenty-one days to live. was passing through them. This was to allow the air-conditioning system to function properly, and to prevent air loss in case of the highly he thought that he was completely unfit as a leader. It was true that his strictest orders were disobeyed with Everyone in the survey except McIlroy realized this, and even he accepted this without thinking about it. He had fallen into the habit of suggesting mildly anything that he wanted done, and writing orders he didn't particularly care to have obeyed. For example, because of an order of his stating that there would be no alcoholic beverages within the survey building, the entire survey was assured of a constant supply of home-made, but passably good liquor. Even McIlroy enjoyed the surreptitious drinking. "There doesn't seem to be any profit," Mr. Phelps said. "That's par for a nonprofit organization," said McIlroy. "But we're Mr. Phelps joined the laughter. "Bankers' hours don't mean much, at any rate," he said. The power crew was having trouble with the solar furnace. Three of the one bank moved so jerkily that it could not be focused, and it threatened to tear several of the mirrors loose. "What happened here?" Spotty Cade, one of the electrical technicians asked his foreman, Cowalczk, over the intercommunications radio. "I've got about a hundred pinholes in the cables out here. It's no wonder they "I swear, Mac," said Jones, "another season like this, and I'm going back to mining." "I thought you were doing pretty well," said McIlroy, as he poured two drinks from a bottle of Scotch that Jones had brought him. "Oh, the money I like, but I will say that I'd have more if I didn't have to fight the union and the Lunar Trade Commission." McIlroy had heard all of this before. "How's that?" he asked politely. "You may think it's myself running the ship," Jones started on his taste in his mouth, which he hurriedly rinsed with a sip of Scotch. "The Commission," he continued, making the word sound like an obscenity, McIlroy noticed that his friend's glass was empty, and he quietly filled it again. profit I could make by cutting rates the other way." "Why not?" asked McIlroy. He knew the answer, but he liked to listen to the slightly Welsh voice of Jones. isn't worth the carrying of them. And then, of course, there's the water we haven't got. We could afford to bring more water for more people, and set up more distilling plants if we had the money from the nickel. "Even though I say it who shouldn't, two-eighty a quart is too much to pay for water." Both men fell silent for a while. Then Jones spoke again: "Well, if I don't see him, you let him know about the chromium." "Anything to help another Welshman, is that the idea?" "Well, protection it is that a poor Welshman needs from all the English when Evans had quarried all the ice that was available in the cave. The thought grew on him as he worked that this couldn't be the only such his suit was reading dangerously near empty. He turned back to his tractor, moving as slowly as he felt safe in doing. Running would use up the sweat. It didn't help much, and it left a blurred spot in his vision. That annoyed him. "Is everyone clear of the outlet?" he asked. clean out the boilers once a year to make sure the tubes in the reactor was about half full, the water began to run nearly clear. An electric eye noted that fact and a light in front of Cade turned on. Cade threw the switch back the other way, and the relay in the reactor building ruptured. A stream of mud gushed out and boiled dry on the face of the Moon. Cowalczk and Lehman rushed forward again. They could see the trickle of water from the discharge pipe. The motor turned the valve back and forth in response to Cade's signals. "What's going on out there?" demanded McIlroy on the intercom. "Are the reactors off?" "Yes. Vat blew. Shut up! Let me work, Mac!" "Sorry," McIlroy said, realizing that this was no time for officials. shaft. It's slipping every time the valve closes. There's not enough "O.K.," said Cade. "An engineer here says there's no manual cutoff." "Like Hell," said Lehman. Cowalczk and Lehman opened the valve again. Water spurted out, and "What?" Cade asked. "Oh, you mean the valve servo you two bashed up?" "No," said Lehman, "I mean the two thousand gallons of water that we lost." "Oh, God, I suppose this means water rationing again." oxygen runs out. more intense as the sun slowly pulled over the horizon. Mrs. Garth walked into the director's office, and saw the director sleeping with had been since he had slept last. More than that, McIlroy wondered why this banker, who had never met Evans, was losing so much sleep about population of Williamson Town was involved, one way or another, in the search. The director turned to ask Phelps about this fact, but the banker was slumped in his chair, fast asleep with his coffee untouched.

<question>:
What do the workers of WIlliamson Town do that causes them to lose water?

<options>:
A Something got stuck when they tried to balance the weight on the valve mechanism
B Something malfunctioned when they tried to clean old build-up
C A water container exploded while they were trying to fill it
D One of the men was siphoning water supply for profit

<answer>:

B