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

<passage>:
the pail. Who wouldn't, knowing everyone on Earth was dead except Pa huddles back against the blankets hanging around the Nest. Pa says it the inside that I couldn't have seen the light even if it had come out of one of the windows to get me. Then I had the wit to go back inside. Pretty soon I was feeling my familiar way through the thirty or so which there is a fire that must never go out. It keeps us from freezing and does a lot more besides. One of us must always watch it. Some of It slowly melts and vanishes and refreshes the Nest and feeds the fire. The blankets keep it from escaping too fast. Pa'd like to seal the whole place, but he can't—building's too earthquake-twisted, and besides he has to leave the chimney open for smoke. comes crawling toward the Nest, just like an animal snuffing for died. He stood for a moment frowning. Then, "I'll go out with you, and you show it to me," he said. Ma raised a howl at the idea of being left alone, and Sis joined in, too, but Pa quieted them. We started climbing into our outside clothes—mine had been warming by the fire. Pa made them. They have outside there, waiting to get us. I've felt it for years—something that's part of the cold and hates all warmth and wants to destroy the Nest. It's been watching us all this time, and now it's coming after us. It'll get you and then come for me. Don't go, Harry!" on the roof to check if it's working all right. That's our worst trip and Pa won't let me make it alone. afraid to go by myself, but when Pa's along I always want to hold on to him. Habit, I guess, and then there's no denying that this time I was a bit scared. You see, it's this way. We know that everything is dead out there. Pa heard the last radio voices fade away years ago, and had seen some of the last folks die who weren't as lucky or well-protected as us. So we knew that if there was something groping around out there, it couldn't be anything human or friendly. Besides that, there's a feeling that comes with it always being night, cold out all the time. it only so long, and then he's got to toss it to someone else. When it's tossed your way, you've got to catch it and hold it tight—and hope there'll be someone else to toss it to when you get tired of being brave." the Nest and took off our outside clothes, Pa laughed about it all and this burned out sun, and upsets everything. You know, I find it hard to believe in the way those people felt, any more than I can believe in the swarming number of them. Imagine people getting ready for the horrible sort of war they were cooking up. Wanting it even, or at least wishing it were over so as to end their nervousness. As if all folks didn't have to hang together and pool every bit of warmth just to keep alive. And how can they have hoped to end danger, any more than we can hope to end the cold? there wasn't much time to get ready. At the beginning they tried to keep it a secret from most people, but then the truth came out, what with the earthquakes and floods—imagine, oceans of me once or twice, grabbing me by the collar to do it, when I've been in order to take it away. broke or skulls cracked. We've often asked Pa how people acted during that time, whether they were scared or brave or crazy or stunned, or all four, but he's sort of leery of the subject, and he was again tonight. He says he was mostly would freeze—and they'd been working like mad to fix up a place with airtight walls and doors, and insulation against the cold, and big supplies of food and fuel and water and bottled air. But the place sitting with a pile of wraps huddled around her, looking hopefully toward the door, as if waiting for someone who never came back with warmth and food. They're all still and stiff as statues, of course, but just like life. moves endlessly when it's just about as cold as that? What if the ever-growing cold, with the temperature creeping down the last few degrees to the last zero, had mysteriously wakened the frozen folk to The frozen folk with minds from the dark star behind their unwinking eyes, creeping, crawling, snuffing their way, following the heat to the Nest. I tell you, that thought gave me a very bad turn and I wanted very badly to tell the others my fears, but I remembered what Pa had said and clenched my teeth and didn't speak. We were all sitting very still. Even the fire was burning silently. the use of dragging it out for a few years? Why prolong a doomed existence of hard work and cold and loneliness? The human race is done. The Earth is done. Why not give up, I asked myself—and all of a sudden I got the answer." "Life's always been a business of working hard and fighting the cold," Pa was saying. "The earth's always been a lonely place, millions of miles from the next planet. And no matter how long the human race might have lived, the end would have come some night. Those things don't enlarge and seal the Nest. I'd do what I could to keep everything The silence kept on while I swallowed hard a couple of times, and after that there was all sorts of jabbering and commotion. They were simply people, you see. We hadn't been the only ones to survive we'd just thought so, for natural enough reasons. These three people had survived, and quite a few others with them. And when we found out broke down and cried. They'd been scouting around for survivors, but they never expected to survivors. No good trying long-distance radio signals, of course, since there was no atmosphere to carry them around the curve of the Earth. there was something warm down here, so they'd landed to investigate. Of course we hadn't heard them land, since there was no air to carry them all laughing and jabbering again. The newcomers even got a little drunk. They weren't used to so much oxygen. pretty uncomfortable and disturbed myself, even about the young lady. Glimpsing her outside there, I'd had all sorts of mushy thoughts, but now I was just embarrassed and scared of her, even though she tried to be nice as anything to me. I sort of wished they'd all quit crowding the Nest and let us be alone and get our feelings straightened out. And when the newcomers began to talk about our all going to Los Alamos, The strangers were puzzled like anything at first, but then they got the idea. As Pa kept saying, "It just doesn't seem right to let this fire go out." Well, the strangers are gone, but they're coming back. It hasn't been decided yet just what will happen. Maybe the Nest will be kept up as what one of the strangers called a "survival school." Or maybe we will "It's different, now that we know others are alive," he explains to me. "Your mother doesn't feel so hopeless any more. Neither do I, for that matter, not having to carry the whole responsibility for keeping the human race going, so to speak. It scares a person." I looked around at the blanket walls and the fire and the pails of air boiling away and Ma and Sis sleeping in the warmth and the flickering light. "It's not going to be easy to leave the Nest," I said, wanting to cry, kind of. "It's so small and there's just the four of us. I get scared at the idea of big places and a lot of strangers." just as if it was one of our birthdays or Christmas. the way it was in the beginning." I guess he's right. You think the beautiful young lady will wait for me till I grow up? I'll be twenty in only ten years.

<question>:
How does the family feel about leaving their home?

<options>:
A They want to leave as soon as possible
B They decide to stay in their home forever to keep the fire going
C It takes some time for them to decide to leave
D They are too afraid of strangers to leave

<answer>:

C