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

<passage>:
in the artificially warmed city. They entered an elevator The year 1928 was a great year of discovery for AMAZING STORIES . They were uncovering it. As they approached, a lean man, carrying a black bag, darted out of an elevator shaft opposite the door, ran across the corridor, and entered. They pushed in after him. They were in a little room, against the wall, that reminded one of the waiting room in an old the sleepy boy. "Queek! I have tell you zee truth! I have zee most urgent necessity to go queekly. A patient "If dry wood were gold dust, we couldn't buy a hot dog." when life was simple and natural, when men hunted and killed their Searching Mind." The Cosmic Express "None of your impertinence, sir! I want my dog." "Ah, a dog. Must have jumped off the crystal. You can have they did not seem to abound in the Venerian jungle. Even small gems, waddled pompously out of the door through which the frantic French doctor had into the corridor. Shrill words floated back: "I'm going to see my lawyer! South Sea Islands. But they for the sake of survival on the Llano Estacado." The discovery AMAZING STORIES was the escape he sought and his goal was clouds. watching the life there, already. Terrible place. Savage. I can pick a place on high land to pajamas. He smiled fondly across for what happens afterward." "Simple, primitive life is what we're looking for. And now what do I owe you—" to the other of the twin beds, gave it up, and walked through an open door into a small bright The little door had swung open again, and Eric led Nada through. They stepped into a little sides. Don't move." cell, completely surrounded Eric helped Nada to a place on the crystal, lay down at her side. "I think the Express Ray is into the crystal." "Ready," called the youth. "Think I've got it for you. Sort of a high island in the jungle. Nothing bad in sight now. But, I say—how're you coming back? I haven't got time to watch you." "Go ahead. We aren't coming the ancient ranches. Or a man Nada and Eric felt themselves next thing they knew, the fires were gone from about them. They were lying in something extremely soft and fluid garments stained with black mud. All about rose a thick jungle, dark and gloomy—and very wet. a beautiful girl in the other. "At last!" Nada cried. "We're Or a cowboy, "hard-riding, hard-shooting," source of his thrills—provided they were distant enough from modern civilization. His hero was likely to be an ape-man roaring through the jungle, with a bloody rock in one hand and Nada.... But now we the vanishing hero of build a fire, find weapons, set up a shelter of some kind. I guess it will be night, pretty soon. And on a desert South Sea island. savage animals he had seen in the television. "We'll find a nice dry cave, and have a fire in front of the door. And skins of animals to equal terms with a cave-man, or call science to aid them in defending a beautiful mate from "But first we must find a flint-bed. We need flint for tools, and the terrors of a desolate wilderness. who could handle a club on cook in. And you will find seeds His heroes were invariably Presently they set off through the jungle. The mud seemed to be very abundant, and of a most Eric had settled down to the strong, fearless, resourceful fellows, marooned with a lovely woman too—it's found native." their feet. A mile they struggled on, without finding where a provident nature had left them even Charley said something about Then came a sound from the The Nada stopped. "Eric," she said, "I'm tired. And I don't believe there's any rock here, anyway. You'll have to use wooden tools, sharpened in the fire." "Probably you're right. This soil seemed to be of alluvial origin. Shouldn't be surprised if the native rock is some hundreds of feet underground. Your idea is better." "You can make a fire by rubbing due in the publisher's office at the some dry sticks, first." And a hundred million read the dark heavens in a steady, warm downpour. Dry wood seemed scarce as the proverbial hen's teeth. were extinct, there were no wild flowers, and no one had time to "Matches! Of course not! We're going back to Nature." "I hope we get a fire pretty soon." sleep on. And pottery vessels to dear?" bother about sunsets. I'm hungry." and grown grain." He confessed to a few pangs of his own. They turned their attention to looking for banana trees, and coconut palms, but living under glass, like hot-house flowers." "If we could only go somewhere—" "There isn't anywhere to go. I At last, from sheer weariness, they stopped, and gathered branches to make a sloping shelter by a vast fallen tree-trunk. "This will keep out the rain—maybe—" write about the West, Africa, "And tomorrow, when it has quit raining—I'm sure we'll do better." They crept in, as gloomy night fell without. They lay in each to strike sparks to make a fire Eric said hopefully. little. "Buck up," Eric advised her. "We're back to nature—where we've always wanted to be." With the darkness, the temperature other's arms, the body warmth with. We will probably come rain into the little shelter, and across a chunk of virgin copper, threatening to demolish it. Swarms of mosquito-like insects, "Eric, I wonder if we could go swarmed about them in begin life like the characters in your stories, to get away from this hateful civilization, and live natural lives. Maybe a rocket—" Nada clung against Eric. "What is it, dear?" she chattered. "Must be a reptile. Dinosaur, or something of the sort. This world seems to be in about the hunting in the virgin forest, and bringing the game home to you! But I'm afraid there is no way.—Wait! they flourished there.... But maybe it won't find us." The roar was repeated, nearer. The earth trembled beneath a same state as the Earth when ecstatically. "Splendid! Think of "we" the girl did not notice. The roaring outside was closer. And suddenly it was answered strangely through the forest. The fearful sounds were repeated, alternately. And always if they were demolishing forests. Eric and Nada clung to each other, in doubt whether to stay or to fly through the storm. Gradually the sound of the conflict came nearer, until the earth shook beneath them, and they were afraid to move. atoms at the destination." Suddenly the great fallen tree the flimsy shelter was rolled back, evidently by a chance blow from the invisible monsters. The pitiful roof collapsed on the bedraggled against which they had erected fingers through golden-brown hair. "But I don't see how they get any recognizable object, not overcame them. A few moments later, they were lying resolved to forget that his next "red-blooded action thriller" was hope you haven't been injured." "Why—what—what—" "Why I happened in, found I will be perfectly satisfied to get back to our apartment." "I don't wonder. You look like you've been through—I don't A bell had rung at the shaft. She ran to it, and returned with off the grime of another planet. He spent the next twelve hours in bed. a man marooned on Venus, with a beautiful girl. The hero made stone tools, erected a dwelling for himself and his mate, hunted food for her, defended her from they have scattered about the world. But I know his weak point—"

<question>:
Why don't Eric and Nada build a shelter first?

<options>:
A They are looking for dry sticks to rub together.
B They are certain they will find tools.
C They are looking for flint to make a fire.
D They are looking for a cave.

<answer>:

C