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

<passage>:
WIND By CHARLES L. FONTENAY When you have an engine with no fuel, and fuel without an engine, and a life-and-death deadline to meet, you have a problem indeed. Unless you are stands on, transmission belts, spare propellers." parts, but no fuel." Jan smiled a tight smile. "Tell them to take the engines out," he said. "Since we have no fuel, we may as well have no a stubborn Dutchman—and Jan Van Artevelde was Everything was ready, except climbing aboard, closing the airlock resist the earth shocks that came howling gale that swept from the west. The huge wheels twisted and jolted against the rocks outside, in an aircraft. What he and the patient took off successfully more than an hour ago, had said Heemskerk could only draw the filled the airtight groundcar. conclusion that the aircraft had been wrecked somewhere in Den There came a new swaying groundcars out to search for it. ground about him buckle and not fully realize our position here. We have no engines except the stationary generators that groundcar radio. "That's the third time in half an hour," he commented. "The do not have gasoline engines for said. "Some of those legs it give us current for our air-conditioning are powered by the windmills. We used on terrestrial railroads? Ours are powered like that, but we cannot operate them when the Venerian wind is blowing. By the time I diagnosed the Venus Shadow and became a strange little flying disc with two people standing on it and A broom? No. The platform hovered and the Dutchman slashed at the contraption, the cut ends of belts whipped out wildly and the platform slid to the ground with a rush. It hit with a clatter and its two passengers tumbled prone to the ground. "Jan!" boomed Heemskerk, what happened? Even that damned thing ought to get here from Rathole faster than that." "Had no fuel," replied Jan briefly. "My engines were all right, but I had no power to run them. So I had to pull the engines and rig up a power source." Heemskerk stared at the platform. On its railing was rigged a tripod of battered metal pipes, atop which a big four-blade propeller spun slowly in what wind was left after it came over the western mountain. Over the edges of the platform, running from the two propellers in its base, hung a series of tattered said Dekker. "He needs to be evacuated to Earth immediately. He's suffering from the Venus Shadow." Jan whistled softly. He had emergency: a windmill!" THE END will have to take a groundcar to So now Jan gripped his clay pipe between his teeth and piloted the groundcar into the teeth of the Twilight Gale. downwind—if it isn't wrecked on But even the 2½-meter wheels of the groundcar had trouble amid and the people here were civilian employes who refused to move north with it. There was a flying body of the groundcar was suspended from the axles, there was constant danger of its being flipped over by a gust if not handled just right. The three earthshocks that had or plane?" "They call it a flying platform. It carries two men, I believe. But, work, and one was left behind—probably "What kind of machine? Copter them, before I left Earth. Man, dropped several meters by past quakes. The groundcar zig-zagged slowly westward. The tattered wind? They're tricky as they can be, and the passengers are absolutely unprotected!" " one of those little things in this you don't expect me to try to fly he could not take his hands from the wheel to refill it. forgotten that we have no gasoline engines here? There is no fuel for the flying platform." The platform was in a warehouse which, like the rest of the had driven less than three hundred half-buried dome. The platform's meters when a quake more severe than any of the others structures in Rathole, was a The ground heaved and buckled like a tempestuous sea. Rocks rolled and leaped through engines sat on each side of this the groundcar with ominous railed circle and between them on The passengers entered it on the fourth side. The machine was dusty and on its giant wheels like a sideways, and almost overturned. And the wind smashed down on it unrelentingly. drunken man. The quake was so violent that at one time the vehicle able to make no progress at all and struggled only to keep the groundcar upright. Then, in unison, both earthquake and wind in their plastic shrouds. They appeared in good shape. Each was powered by one of the engines, send the groundcar speeding died to absolute quiescence. situation. As far as he could determine, without making tests, the engines were in perfect condition. Two perfectly good engines, and no fuel for them. "You're sure there's no gasoline, transmitted to it by heavy rubber belts. trade could not buy precious gasoline. "No, it wouldn't work," he said. "We could rig batteries on the platform and electric motors to turn the propellers. But batteries big enough to power it all the way to Oostpoort would be so heavy the machine couldn't lift He pulled the groundcar to a for a groundcar, except for the The groundcar! Jan straightened and snapped his fingers. "Doctor!" he explained. "Send a couple of men to drain the rest of the fuel from my groundcar. And let's get this platform above platform and carried it up a ramp and outside. As soon as they reached ground level, the wind hit them. They dropped the platform to the ground, where it shuddered and swayed momentarily, and two of the men fell successfully on their stomachs. The wind caught the third and somersaulted him half a dozen and secured it by them to the heavy chain that ran by the dome. The platform quivered and shuddered in the heavy wind, but its base was too low for it to overturn. Shortly the two men returned with the fuel from the groundcar, struggling along the chain. the carburetors and spun the engines. Nothing happened. He turned the engines over again. One of them coughed, and a cloud of blue smoke burst from its exhaust, but they did not machine they used for short-range catch. "What is the matter, " He went out, shutting the airlock "I don't know," replied Jan. "Maybe it's that the engines haven't been used in so long. I'm afraid I'm not a good enough with a little help in the dome. One of the men of Rathole came to Jan's side and tried the engines. They refused to catch. The man made carburetor adjustments and tried "He says that your groundcar correct?" "Why, yes, that's true." "He says the fuel will not work then, fuel and the platform must have high octane gasoline." Jan threw up his hands and "There's nothing that can be done," answered Jan. "They may as well put the fuel back in my groundcar." "There's nothing that can be done," he repeated. "We can't make the trip overland because of the chasm out there in Den Hoorn, and we can't fly the platform because we have no power for it." groundcar. There was a score of men there now, and a few women. They let the pair go Jan swung the groundcar around this until he had to brake the groundcar almost to a stop at one point, because it was not shaking in severe, periodic shocks as it had earlier. It quivered constantly, like the surface of quicksand. Jim saw it at the same time and hit the brakes so hard the groundcar would have stood on its nose had its wheels been smaller. They skidded to a stop. The chasm that had caused him such a long detour before the bottom. Cursing choice Dutch profanity, Jan wheeled the groundcar Rathole, power in the air all around them. If he could only use it! But to turn the platform on its side and let the wind spin the propellers was pointless.

<question>:
Why did the fuel from the groundcar not work in the flying platform?

<options>:
A The fuel was too cold to be combusted
B The fuel was old and no longer good
C It was the wrong type of fuel
D The engines in the flying platform had gone bad

<answer>:

C