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

<passage>:
Ryzga made a savage, wholly futile effort to lift the weapon in his paralyzed hand. Then his eyes rolled upward, and abruptly he went limp and fell in a heap, like a mechanical doll whose motive power has Var felt Neena beside him, and drew her close. As she sobbed her relief, conquer.... Var. Var eyed him for a long moment The ice-wind blew from the glacier, but Var's love was round her as a vengeance. mountain. Var sensed her fear, and the love that had conquered it. He be death for Var, and for Neena living shame. Which of the two was worse was no longer a simple problem to Var, who had grown much older in the Var sighed, shaking his head. "It won't hold them for long, but it's the cost. They hoarded their strength, helping one another 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 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 Warming to the old man now, Var sketched his and Neena's history Var nodded somberly, thinking that an old recluse would in any case be Var grinned mirthlessly. "We haven't much choice, since they're nestled by Var's side. He asked, "And you—are you willing to follow below, and I returned in time." Now for the first time Var sensed the power in the old man's look, the power of four hundred years' wisdom. Var stared down at his hands. the Ryzgas, there was lust for power, and atrocious cruelty tyranny, power, and cruelty as theirs, had never been known. They ruled its heart for energy, poisoned its seas and its air with the fume of fire is that of the Sun, and even now, two thousand years later, the find numberless fragments of rusted or corroded metal, bits of glass and strange plastic substances, debris of artifacts still showing the marks of their shaping—the scattered wreckage of the things they made. And Var and Neena stared, unstirring, with wide vacant eyes, while the old the naked skeletons of buildings and were followed by thunder and a shaking of the earth. Var blinked dazedly in the shadowless glow of the ice-cave. His arm vision of such scope and reality as Var had never seen—no, lived mind as it groped for his there was a confusion of horror and pity. Var seemed suddenly a very long way off, and Var could no longer feel his Var strove to cry out that there was no time, that Groz was near and Var woke. Daylight glimmered through the ice of the cave mouth. He had it was. He came to his feet in one quick movement, realizing in that action that sleep had refreshed his mind and body—realizing also that a footstep Var passed a hand across bewildered eyes. Neena said softly, "Thank you, Not looking at the Watcher, Var muttered unsteadily, "We have no face was unsmiling. "It is this. You, Var, can flee up the canyon to the be too late for them to overtake Var." irreparable.... But to become I and again—that cannot be borne. " the mountain and of its guardian machines. Var closed his eyes, a little was cracked and harsh. Var opened his eyes in surprise, and saw that the Var felt a twinge of unfamiliar emotion Var sent his thoughts probing beyond the curtain, listened intently, slanted steeply downward. Var's hands moved, molding a radiant globe 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 had passed through to light up the depths beyond. For within the mountain something snapped suddenly alert—something alive yet not Var and Neena turned. Far out in the sea of fog, on a dream bridge that Neena's hand tightened on Var's. Var sent a thought of defiance: "Go sky was beneath. Var fought for footing with his balance gone, feeling At Var's thought command Neena froze instantly. "Feel that!" he potential that seemed to whisper featureless tunnel that sloped always toward the mountain's heart. Var pulsed briefly with radiant energy that pained the eyes, and went out. The immaterial globe of light danced on before them. vibration at first, then an increasingly potent shuddering of the floor under their feet and the walls around them. Somewhere far below immense energies were stirring for the first time in centuries. The power that was in the Earth was rising great wheels commenced to turn, the Var faced that way and thought coldly: "Only if you return and let us go Without warning, lights went on. Blinking in their glare, Var and Neena its circular walls were lined with panels studded with gleaming control buttons, levers, colored lights. As they watched light flicked on and off in changing patterns, registering the progressive changes in the vast complex of mechanisms for which this must be the central control station. Behind those boards circuits opened and closed in bewildering confusion the two invaders felt the rapid 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 They looked at one another, the same thought coming to both at once: perhaps, after two thousand years, the masters were dead after all, and only the machines remained? As if irresistibly drawn, they stepped over the threshold. Var and Neena huddled frozenly, half expecting each instant to be their changing colors, of fabric delicate as dream-stuff. In his right hand, with the care one uses with a weapon, he grasped a gleaming metal tube his other hand rested as for support against the frame of the doorway. That, and his movements when he came slowly down the ramp toward them, conveyed a queer suggestion of weariness or weakness, as if he were yet manner and his mind radiated a consciousness of power, a pride and assurance of self that smote them like a numbing blow. With a new shock, Var realized that the Ryzga's thoughts were quite interlopers with the dispassionate gaze of a scientist examining a new, but not novel, species of insect. His thoughts seemed to click, like metal parts of a mechanism falling into places prepared for them. The image occurred oddly to Var, to whom such a comparison would ordinarily have been totally strange. "Culture: late barbarism. Handwork of high quality—good. Physically excellent stock...." There was a complicated and incomprehensible schemata of numbers and abstract forms. "The time: two thousand initially postulated but this will do. The pessimists were mistaken. We can begin again." Then, startlingly super-imposed on the cool progression of logical thought, came a wave of raw emotion, devastating in its force. It was a lustful image of a world once more obedient, Var was staring in fascination at the Ryzga's face. It was a face formed by the custom of unquestioned command But in that moment a light of inspiration had flashed upon Var, and it remained. As the Ryzga stretched out his hand again, Var acted. The Holding that grip, Var strode across the floor and looked straight into such evil that for an instant he almost faltered. But the Ryzga's misdirected and unavailing as those of a child who has not learned to wrestle with the mind. Var had guessed right. When Neena in her terror had flung a dream real being. Var laughed aloud, and with great care, as one communicates with an infant, he projected his thoughts into the other's mind. "There will be no new beginning for you in our years, we've learned some new things. Now at last I understand why you built so many machines, such complicated arrangements of matter and energy to do simple tasks—it was because you knew no other way." its fuel. After us

<question>:
What power does Var possess?

<options>:
A the ability to change his appearance
B the ability to travel through air
C the ability to communicate telepathically
D the ability to change the form of physical objects

<answer>:

C