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

<passage>:
with the Ryzgas themselves, who slept within, ready to wake and conquer.... he continued to look down absently at the dead man. When at last he raised his head, he saw that the drama's end had had a further audience. Var said, "The Watcher's cave should be three miles beyond this pass." He stood rigid, trying to catch an echo of the Watcher's thoughts, but crossed on the air, and both grew weary with the effort such crossings cost. They hoarded their strength, helping one another one alone might It was starry night already when they saw the light from the Watcher's Both had heard of this place, and the ancient who lived there to keep watch on the Ryzga mountain, as a part of the oldest legends of their They felt the Watcher rouse, heard his footsteps, and finally saw him—a shrunken old man, white-haired, with a lined beardless face. The sight of him, more marred by age than anyone they had ever seen before, was tower of wisdom and strength. The Watcher was four hundred years old beside him even Groz, who had always seemed so ancient, was like a boy. The Watcher peered at them in turn. "Welcome," he said in a cracked voice. He did not speak again the rest of his conversation was in thought only. "Welcome indeed. I am too much alone here." The old man grinned toothlessly. "Never fear. Asleep or awake, I watch. Come in! You're letting in the wind." against melting by the Watcher's will. Light blazed in reflections from turned questioningly to the young pair. "We need a little rest out of the cold," said Var. "And food, if you can spare it. We're pursued." Hot food and drink were before them almost at once. The Watcher regarded briefly. "We should have been safe among my people by now. And before very long, I'm sure, I would have performed some deed which Groz would behind us." "A pity, indeed. I would like to help you—but, you understand, I am the Mountain Watcher. I must be above feuds and families." to follow us." "To the mountain, you mean." "And into it, if need be." The Watcher was broodingly silent his eyes shifted to Neena, where she nestled by Var's side. He asked, "And you—are you willing to follow I will lead, if his courage should fail him." The old man said, "It is no part of my duty to dissuade you from this thing. You are free persons. But I must be sure that you know what you are doing. That is the second part of the law the First Watcher made: to guard lest the unwary and the ignorant should bring harm on themselves and on all men." "Do you believe that?" "As one believes stories." First Watcher. I did not see the sleepers, nor will any man until they come again, but I met their sentries, the sentinel machines that guard the Earth for four generations, and the Earth was too little for them. They laid the world waste, stripped it of metals and fuels and bored to strange plastic substances, debris of artifacts still showing the marks of their shaping—the scattered wreckage of the things they made. And we—we too are a remnant, the descendants of the few out of all humanity "From the memories that the old Watchers have left here, and from the shaking of the earth. Along lightless streets, half choked with rubble and with the dead, Then, unbelievably, the thunder fell silent, and the silence swept outward like a wave, from ruined street to street. The mouths that had It poised motionless. For an instant the burning city lay mute then the millions found voice. Some roared ferocious threats and curses others cried desolately— and swim, like a scene under water when a great fish sweeps past, and the ship was gone. who was the Mountain Watcher. their deathless and lifeless sentinels round them, to wait till someone dare arouse them, or until their chosen time—no one knows surely. "I have told you the story you know, and have shown you a glimpse of the The Watcher eyed them speculatively. "Before all," he said finally, looked grimly at the Watcher, and would have spoken but the Watcher own limbs, his face was a numb mask. Dully he heard the old man say, "You are tired. Best sleep until morning." had wakened him. Across the cave he faced a young man who watched him Where's the Watcher?" The other flashed white teeth in a smile. "I'm the Watcher," he answered. "Often I become a youth at morning, and relax into age as the day passes. A foolish amusement, no doubt, but amusements are few here." "You made us fall asleep. Groz will be on us—" "Groz and his people could not detect your thoughts as you slept. They Watcher." rested, your minds are clear. Do you still mean to go on to the Ryzga mountain?" they followed him outside. "You have an alternative," said the Watcher crisply. The two took their will be deceived and follow her, and by the time they catch her it will That possibility had not occurred to them at all. Var and Neena looked at one another. Then by common consent they blended their minds into one. They thought, in the warm intimacy of unreserved understanding: " It " They said in unison, "No. Not that." The Watcher's face did not change. He said gravely, "Very well. I will give you what knowledge I have that may help you when you enter the dizzied by the rapid flood of detail. "You are ready to go," said the Watcher. He spoke aloud, and his voice Watcher had become again the hoary ancient of last night. "You have taken life in your own hands," rasped the Watcher. "Who does too far to discern the rage that must contort his features, but the thought he hurled at them was a soundless bellow: "Young fools! I've caught you now!" Behind Groz the figures of his followers loomed up as striding shadows. made it only this far. It was farther than the Watcher had gone into ready, while their masters yet slept, for the moment of rebirth that might be near at hand. " Stop! —before you go too far!" 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 Through the slow-rolling thunder of the hidden machines seemed to echo the death-cries of a billion slaves, the despair of all flesh and blood 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 open. They had a terse, disconnected quality that was strange and unsettling, and in part they were couched in alien and unintelligible close his mind in the presence of inferior creatures.... interlopers with the dispassionate gaze of a scientist examining a new, but this will do. The pessimists were mistaken. We can begin again." Then, startlingly super-imposed on the cool indicated in the passage above. Then wake the rest...." misdirected and unavailing as those of a child who has not learned to wrestle with the mind. 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." 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

<question>:
How does The Watcher communicate with others?

<options>:
A Mostly through transference of heat and light
B A mix of many methods of communication
C Primarily with his mind
D By talking as the rest of the people do

<answer>:

C