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

<passage>:
could not survive on the Earth, because the something else—capacities undeveloped by our science—after us the end among the cliffs and snow-slopes of the surrounding ranges: an immense and repellently geometric cone, black, its sides blood-tinted by the dying sun. Neena shivered, even though the surrounding cold could not reach her. The ice-wind blew from the glacier, but Var's love was round her as a warming cloak, a cloak that glowed softly golden in the deepening twilight, even as her love was about him. she had challenged the feud of their peoples and had left her home, to the crags that loomed over the pass, and to the frozen ground underfoot. It was black night, as it would really be when Groz and his henchmen reached this place lurid fire spewed from the Ryzga mountain, and strange lights dipped above it and for good measure there was an avalanche in the dream, and hideous beasts rushed snapping and ravening from the crevices of the rock. "Oh!" cried Neena in involuntary alarm. Var sighed, shaking his head. "It won't hold them for long, but it's the sierra, and the way led over bottomless crevasses, sheer drops and sheer ascents, sheets of traitorous glare ice. Place after place had to be cave. The light shone watery and dim from beneath the hoary back of the glacier, and as they came nearer they saw why: the cave entrance was sealed by a sheet of ice, a frozen waterfall that fell motionless from the rocks above. They heard no sound. The two young people stared for a long minute, intrigued and fearful. but neither had been here before. But this was no time for shyness. Var eyed the ice-curtain closely to make sure that it was real, not dream-stuff then he struck it boldly had not meant to be. The old man grinned toothlessly. "Never fear. Asleep or awake, I watch. Come in! You're letting in the wind." Inside the cave it was warm as summer. Var saw with some surprise that all the walls were sheathed in ice—warm to the touch, bound fast against melting by the Watcher's will. Light blazed in reflections from the ice walls, till there was no shadow in the place. Behind them began a tinkling of falling water, thawed from the glacial ridges above to descend sheet-wise over the cave mouth, freezing as it fell into lengthening icicles. The old man gazed at his work for a moment, then turned questioningly to the young pair. is as bad as it was when I was last in it." Hot food and drink were before them almost at once. The Watcher regarded "We know the stories," Var said brusquely. "In the hollow heart of their mountain the Ryzgas sleep, as they chose to do when their world crumbled. But if they are wakened, the mountain will tremble, and the Ryzgas will come forth." come again, but I met their sentries, the sentinel machines that guard them now as they have for two thousand years. When I had gone that far, the mountain began to shake, the force that is in the Earth rumbled below, and I returned in time." Now for the first time Var sensed the "Because of them we must build with dreams instead of iron, and our only fire is that of the Sun, and even now, two thousand years later, the Earth is still slowly recovering from the pangs and poison of that age. If you turn up the sod in the plain where the wild herds graze, you will that was ever built. Only the angry light of fires relieved the city's darkness—that, and the blue-white lightning flashes that silhouetted the naked skeletons of buildings and were followed by thunder and a shaking of the earth. Along lightless streets, half choked with rubble and with the dead, lightning blazed, and the city howled and screamed and burned. Then, unbelievably, the thunder fell silent, and the silence swept citadel. The hordes ran and shrieked again toward the central inferno, and the city burned and burned.... Var blinked dazedly in the shadowless glow of the ice-cave. His arm tightened about Neena till she gasped. He was momentarily uncertain that answered. "Often I become a youth at morning, and relax into age as the Not looking at the Watcher, Var muttered unsteadily, "We have no alternative." There was a liquid tinkling as the ice-curtain collapsed the fresh breeze of morning swept into the cave. The youth beckoned to them, and they followed him outside. The glacial slope on which the cavern opened faced toward the mountain. It rose black and forbidding in the dawn as it had by sunset. To right and left of it, the grand cliffs, ocher and red, were lit splendidly by gave nothing back. Below their feet the slope fell away into an opaque sea of fog, filling a mile-wide gorge. There was a sound of turbulent water, of a river dashed from rock to rock in its struggle toward the plain, but the curling fog hid everything. last on the cindery slope of the great volcanic cone, they sensed that the pursuit already halved their lead. They stood high on the side of the Ryzga mountain, and gazed at the doorway. It was an opaque yet penetrable well of darkness, opening into the face of a lava cliff, closed only by an intangible curtain—so little had the Ryzgas feared those who might assail them in their sleep. Var sent his thoughts probing beyond the curtain, listened intently, abrupt motion he hurled it. The sun-globe vanished, as if the darkness had drunk it up, but though sight did not serve they both sensed that it mountain something snapped suddenly alert—something alive yet not living, seeing yet blind. They felt light-sensitive cells tingle in response, felt electric currents sting along buried, long-idle circuits.... The two stood shivering together. The morning wind stirred, freshening, the fog lifted a little, and they back! Or you'll drive us to enter the mountain!" Groz seemed to hesitate. Then he swung his staff up like a weapon, and for the two on the mountainside the world turned upside down, the blocked.... Then they felt the mountain begin to tremble. A very faint and remote vibration at first, then an increasingly potent shuddering of the floor under their feet and the walls around them. Somewhere far below immense that of Groz, like the grip of two strong wrestlers. In that grip each knew with finality that the other's stubbornness matched his own—that neither would yield, though the mountain above them and the world outside should crumble to ruin around them. "Follow us, then!" They plunged deeper into the mountain. And the shaking of the mountain increased with every step, its vibrations became sound, and its sound shifting of magnetic fields, the fury of electrons boiling in vacuum.... For long moments they forgot the pursuit, forgot everything in wonder at this place whose remotest like they had never seen in the simplicity of "Culture: late barbarism. Handwork of high quality—good. Physically initially postulated but this will do. The pessimists were mistaken. We can begin again." Then, startlingly super-imposed on the cool toward the stars, the stars! The icy calculation resumed: "Immobilize these and the ones indicated in the passage above. Then wake the rest...." There was an instantaneous glare like heat lightning, and the monster crumpled in on itself, twitched briefly and vanished. energy to do simple tasks—it was because you knew no other way." Behind the hate-filled eyes the cold brain tried to reason still. "Barbarians...? Our party was wrong after all. After us the machine civilization could never rise again, because it was a fire that consumed its fuel. After us man

<question>:
Why does the story take place somewhere cold?

<options>:
A The history of the area is such that warmth and resources have been taken from the land
B A volcano has blocked light from the region making everything cold
C The mountains are the only place Var and Neena can hide
D It isn't actually cold, because of the lava

<answer>:

A