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

<passage>:
that left the Earth with a wing and a prayer. Earth was so far away that vast distance did not mean that isolation could endure forever. Instruments within the ship intercepted radio broadcasts and, translating the major languages. The history of the planet was tabulated as facts became available. it was not much out of the way to swing nearer Earth. For days the two within the ship listened and watched with little comment. They had to decide soon. "We've got to make or break," said the first alien. who had spoken first. "The place is a complete mess. They've never done anything except fight each other—and invent better weapons." "It's not what they've done," said Bal, the second alien. "It's what they're going to do, with that big bomb." "The more reason for stopping," said Ethaniel. "The big bomb can destroy them. Without our help they may do just that." in everything they do." "It won't take much," said Ethaniel. "The wrong diplomatic move, or a trigger-happy soldier "Could you? Forget so many people?" "I'm doing it," said Bal. "Just give them a little time and they to say?" "It is. The fact that they are "Tough," said Bal. "Nothing we can do about it." "There is. We can give them a week." this way again." "A very long time. There's nothing in this region of space our people want," said Ethaniel. "And how long can Earth last? Ten years? Even ten months? The tension is building by the hour." "What can I say?" said Bal. them over. We're not committing ourselves by looking." They went much closer to Earth, not intending to commit themselves. For a day they circled the planet, avoiding radar detection, which for them was not difficult, testing, and sampling. worse than I imagined." "In what way?" "Well, we knew they had the big bomb. Atmospheric analysis showed that as far away as we were." "I know." "We also knew they could deliver the big bomb, presumably by some sort of aircraft." "That was almost a certainty. They'd have no use for the big bomb without aircraft." "What's worse is that I now there, wondering when it's going to hit them. Nervousness could set it off." "It could, and the missiles did you find out at your end?" "Nothing worthwhile. I was looking at the people while you "I wish I knew what to think. There's so little time," Ethaniel said. "Language isn't the difficulty. listening to advertisements, music, and news bulletins. I should go down and live among them, read books, talk to scholars, work with them, play." "You could do that and you'd really get to know them. But "A flat yes or no," said Bal. "No. We can't help them," said Ethaniel. "There is nothing we can do for them—but we have to try." "Sure, I knew it before we before. We take the trouble to find out what a people are like and when we can't help them we feel bad. It's going to be that way again." He rose and stretched. think of some way of going at it." It was longer than that before they met again. In the meantime the ship moved much closer to Earth. They no longer needed instruments to see it. The planet revolved outside the visionports. spread over the mid-regions of the north. "I haven't thought of anything worked. Today they have satellites. They are not primitives." "I suppose you're right," said Bal. "I did think we ought to take advantage of our physical differences." "If we could I'd be all for it. But these people are rough and desperate. They wouldn't be fooled by anything that crude." "All right," said Ethaniel. "You take one side and I the other. We'll tell them bluntly what they'll have to do if they're going to survive, how they can keep their planet in one piece so they can live on it." "That'll go over big. Advice is always popular." "Can't help it. That's all we "None. We leave the ship here and go down in separate landing craft. You can talk with me any communications, but don't unless you have to." "They can't intercept the beams we use." "They can't, and even if they did they wouldn't know what to do with our language. I want them to think that we don't need to talk things over." "I get it. Makes us seem better than we are. They think we know exactly what we're doing even though we don't." "If we're lucky they'll think that." We'll be running straight into it. That won't help us any." "I know, they don't like their holidays interrupted. It can't be helped. We can't wait until it's over." "I'm aware of that," said Bal. to pin down." "I see. I was thinking there might be some way we could tie ourselves in with this holiday. Make it work for us." "If there is I haven't thought of it." about. Down there, alone." "I'll be with you. On the other side of the Earth." "That's not very close. I'd like it better if there were someone in the ship to bring it down in a hurry if things get rough. They don't think much of each other. I don't imagine they'll like aliens any better." "They may be unfriendly," It was snowing and men were cutting small green trees in the snow. "I've thought of a "I don't guarantee anything," said Ethaniel. "This is what I was thinking of: instead of hiding the ship against the sun where there's little chance it will they do see it. Let's take it around to the night side of the planet and light it up." should occur to them they'll have no way of checking it. Also, they won't be eager to harm us with our ship shining down on them." "That's thinking," said Bal, the ship over where they can see it best and then I'll light it up. I'll really light it up." "Don't spare power." "Don't worry about that. They'll see it. Everybody on Earth will see it." Later, with the the darkness of space, pulsating with light, Bal said: "You know, I feel better about this. We may pull it off. Lighting the ship may be just the help we need." "It's not we who need help, but the people of Earth," said Ethaniel. "See you in five days." With Earth. As soon as it was Earth, unmanned, blazing and could equal it in brilliancy. Once a man-made satellite came near In five days the two small landing up from Earth and joined the them. In a short time the aliens how we did it and I thought we were going to fail but at the last minute they came through." "From my own experience it seemed to be a good idea," said Ethaniel. "If I went out walking one day I noticed that the next day the officials were much more cooperative. If it worked for me I thought it might help you." "It did. I don't know why, but it did," said Bal. "Anyway, this agreement they made isn't the best but I think it will keep them from destroying themselves." "It's as much as we can expect," said Ethaniel. "They may have small wars after this, but never the big one. In fifty or a hundred years we can come back and see how much they've learned." "I'm not sure I want to," said "Why?" "When I went out walking sometimes I flew back. I hope that was all right." In the cabin Bal spread his their paintings they had pictured him innumerable times. "I don't think it hurt us that "Sure," said Bal. "Anyway, peace on Earth." THE END Transcriber's Note:

<question>:
Why did the alien separate when they go down to the surface instead of working together?

<options>:
A They want to take advantage of some alone time while they are not on their main ship.
B They have different knowledge of these different areas, as they travel to the areas they know more about.
C There is not space for two aliens in one small landing craft, so they must split up.
D They thought they could cover more ground this way and talk to more people about maintaining peace.

<answer>:

D