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

<passage>:
lines—little clothing being required in the artificially warmed Amazing Stories Amazing Stories The had whipped up to the base of another building, in the business section, where there was no room STORIES They were uncovering it. As they approached, a lean man, carrying a black bag, darted out of an elevator shaft opposite AMAZING STORIES He followed his initial success AMAZING STORIES his bag frantically, raving at the sleepy boy. service. Regular installations all over the world in a year.... Ready now. Come on in." "Hands at your sides, don't breathe. Ready!" were telling me about? Congratulations!" courteously. "All right, madam. Walk out. Hope you found the transit pleasant." is of special little else but, and it gave the barely avoiding the farcical by the validity of the notion that is the next big transportation frontier to be conquered. It is especially important because it stylistically forecast a later trend to accept the background for granted, regardless of the quantity of wonders, and proceed with the story. With only a few thousand The when covered wagons were the primary form of transportation heart-breaking war with "And now what can I do for you, Eric?" for the sake of survival on the "We want to go to Venus, if The discovery orders are to use the Express merely between the sixteen designated was the escape stations, at New York, he sought and his goal was AMAZING STORIES he knew that a story of his had there." "To Venus? Impossible. My San Francisco, Tokyo, London, AMAZING STORIES labored to this end and the first record as follows: "I feel that By which I mean that it is the most interesting and stimulating Terrible place. Savage. I can pick a place on high land to set you down. But I can't be responsible for what happens afterward." "Simple, primitive life is what we're looking for. And now what "Oh, that's all right. Between friends. Provided that stuff's genuine! Walk in and lie down on gave it up, and walked through and began a series of fantastic "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 "Gee! What is it? Elopement? I thought you were married already. Or is it business difficulties? The Bears did make an awful raid last night. But you better let me set you down in Hong Kong." A bell jangled. "So long," the The next thing they knew, the fires were gone from about them. They were lying in something green, that brought a thrill of He wrote "thrilling action romances," was impartial as to the source of his thrills—provided "You're the perfect companion, Nada.... But now we must be practical. We must build a fire, find weapons, set up a shelter of some kind. I guess it will be night, pretty soon. And Charley said something about 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 sleep on. And pottery vessels to cook in. And you will find seeds and grown grain." "But first we must find a flint-bed. We need flint for tools, and to strike sparks to make a fire dramatization of them on the the terrors of a desolate wilderness. too—it's found native." Presently they set off through the jungle. The mud seemed to the life of man. be very abundant, and of a most artistic satisfaction of describing the sensuous delight of his power is required to rebuild the on, without finding where a provident nature had left them even hero in the roasted marrow-bones their feet. A mile they struggled resolved to forget that his next "red-blooded action thriller" was due in the publisher's office at the "Probably you're right. This for a long happy moment. hand, to the side of the room and of feet underground. Your idea is better." "You can make a fire by rubbing punched a series of buttons on a "It can be done, I'm sure. I've never tried it, myself. We need some dry sticks, first." They resumed the weary march, with a good fraction of panel—a simple way of ordering sticks together, can't you?" the new planet adhering to their seemed scarce as the proverbial dear?" "Matches! Of course not! We're going back to Nature." "I hope we get a fire pretty soon." "If dry wood were gold dust, we couldn't buy a hot dog." He confessed to a few pangs of the joys of conflict, instead of flowers." "If we could only go somewhere—" "There isn't anywhere to go. I write about the West, Africa, South Sea Islands. But they slain with a broken branch had 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—" Eric said hopefully. "And tomorrow, when it has quit raining—I'm sure we'll do better." They crept in, as gloomy night little. "Buck up," Eric advised her. "We're back to nature—where we've always wanted to be." ruined it." and it must be much like Earth was a million years ago." "Eric, I wonder if we could go begin life like the characters in your stories, to get away from this hateful civilization, and live The or something of the sort. This ecstatically. "Splendid! Think of hunting in the virgin forest, and bringing the game home to you! world seems to be in about the But I'm afraid there is no way.—Wait! life was not so bad, after all." "I was just thinking of our rooms, nice and warm and bright, with hot foods coming up things." "But this is quite remarkable, dear. A new way to travel—by ether!" "By ether!" It has ruined nature, filled both are simply change. The disintegration of the If we could go to Venus, to a new 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 to convert the matter to be came nearer, until the earth atoms at the destination." Suddenly the great fallen tree "But the amount of energy object and sets it down on the other side of the world. "Why—what—what—" "Why I happened in, found through the object, progressively, is the better of the two. For no as in television. The object is built up of an infinite series of up, and the 'dry-laws' are on the the boy. I don't want him to suffer of the power is lost, and 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 for it in any way. My wife and know what. But I'll have you there in five minutes. My private car—" She ran to it, and returned with ate a hearty meal with his pretty spouse, after they had washed off the grime of another planet. He spent the next twelve hours in bed. At the end of the month he delivered his promised story to his publishers, a thrilling tale of When they had finished, she carried a beautiful girl. The hero made disposing of the culinary cares of the morning. for himself and his mate, hunted The book was a huge success. THE END death about the Cosmic Express! life on a new world, and get away from all this hateful conventional society—" "We can go to their office—it's only five minutes. The chap "Oh, darling! I'm thrilled to the company is a pal of mine. He's not supposed to take passengers except between the offices they have scattered about the world. But I know his weak point—"

<question>:
What is the moral of the story?

<options>:
A Be careful what you wish for.
B Climate change could lead to a world where humans could only survive indoors in an artificial climate.
C Overpopulation can lead to a world without nature, only giant cities.
D Make a plan and pack supplies before moving to a new place.

<answer>:

A