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

<passage>:
happening. Man had played unwittingly into the hands of those other minds in the other dimension. Man had waged a war and war had bred a pestilence. And the whole vast cycle of events was but a detail of a cyclopean plan. seven o'clock in the evening and set out on the daily walk he had that other dimension ... or was it one supreme intelligence ... had deliberately sown the seeds of dissension. The reduction of the world's mental power had been carefully planned with diabolic premeditation. taken, at the same time, come rain or snow, for twenty solid Like an automaton he turned again and paced to the hall door. Chambers merely tapped on the glass top of the counter with a Weakly Mr. Chambers moved back to his chair in the corner. For people long ago had gathered that Mr. Chambers desired to be left alone. The newer generation of townsfolk called it eccentricity. Certain uncouth persons had a different word for revolutionary to cost Mr. Chambers his post at the university. October wind was rustling the dead leaves when Mr. Chambers houses already were gone. They had not lived with them as he had lived with this room. Their interests had been divided, thinly spread he never did that. For twenty years, since the year following his expulsion from the university, he had lived by the clock. deliberately set upon such a life of routine. A bachelor, living alone with sufficient money to supply his humble needs, the timed existence had grown on him gradually. Mr. Chambers turned his eyes back into the room. The clock was snarling and growling, snapping at his heels. But Mr. Chambers ticking slowly, steadily. The greyness was stealing into the room. The table and radio were the first to go. They simply faded away was blurting floated to Mr. Chambers. "Oh, well," said Mr. Chambers, "I never did like that very well." The wind whipped the muted words away and Mr. Chambers grumbled Now as he sat there it didn't seem queer to be without the table Something one could expect to happen. Perhaps, if he thought hard enough, he could bring them back. But, after all, what was the use? One man, alone, could not stand off the irresistible march of nothingness. One man, all alone, simply couldn't do it. Mr. Chambers had written. But as Mr. Chambers neared them they fell into what seemed an abashed silence and watched him pass. He, on his part, gave them no sign of recognition. That was the way it had been for many stalking him as he sat in the chair underneath the lamp. And he waited for it. The room, or what was left of it, plunged into dreadful silence. Mr. Chambers started. The clock had stopped. Funny ... the first then stepped back and Mr. Chambers continued on his walk. He started violently. It was only 7:30! had started out at seven and returned at a quarter of eight. Now.... It wasn't until then that he realized something else was wrong. Shaken, muttering to himself, Mr. Chambers let himself in his slowly into the living room. Dropping into his favorite chair, he shook his head in bewilderment. Silence filled the room. A silence that was measured by the ticking of the old fashioned pendulum clock on the mantelpiece. But silence was no strange thing to Mr. Chambers. Once he had He had stopped reading newspapers and magazines too, had exiled himself to a few city blocks. And as the years flowed by, that self exile had become a prison, an intangible, impassable wall Europe and Asia had flamed to an end to be followed by a terrible plague, a plague that even now was sweeping through country after country like wild fire, decimating populations. A plague undoubtedly induced by hunger and privation and the miseries of war. To him they simply did not matter. had forgotten his cigar. Huddled in the chair, he frowned slowly. It was disquieting to No, he hadn't. Take this room, for example. After twenty years it Further reverie became an effort as Mr. Chambers felt himself succumbing to weariness. He undressed and went to bed. For an hour he lay awake, assailed by vague fears he could neither define nor understand. When finally he dozed off it was to lose himself in a series of neither see nor hear, but only could imagine. And as he sought to flee he stayed in the one place. His legs worked frantically, pumping like pistons, but he could make no progress. It was as if strained his vocal cords and filled his lungs to bursting with the urge to shriek ... but not a sound came from his lips. All next day he was uneasy and as he left the house that evening, For the first time in twenty years, Mr. Chambers retraced his Mr. Chambers shivered, reached to turn up the collar of his coat, whispered thought. A deathly silence had fallen, a silence still measured by the pendulum clock. And yet a silence that held a different tenor than he had ever sensed before. Not a homey, comfortable silence ... but a silence that hinted at emptiness and nothingness. There was something back of this, Mr. Chambers told himself. the happenings in the world from which he had excluded himself. He brought them back to mind now and lingered over the one central theme of the talk he overheard: the wars and plagues. Hints of a Europe and Asia swept almost clean of human life, of seemed to hold an explanation. But try as he would his befuddled brain failed to find the answer. The pendulum clock struck slowly, its every other chime as usual Mr. Chambers got to his feet, strode to the door, opened it and He stared at it in amazement, trying to determine what was wrong Gulping in fright, Mr. Chambers slammed the door shut, locked it The light through the windows slowly grew brighter. Mr. Chambers looked. Mr. Chambers was sure of that. too might right itself. But Mr. Chambers was very weary. Too him. Rigid, he sat there, limp inside at the thought. Minutes that Mr. Chambers' entire life was centered. of some anti-rational cult, had forced his expulsion from the merely the vagaries of an over-zealous mind. A tumultuous idea hammered at him. Men had died by the millions the missing piece of a puzzle into its slot. The significance of it all gripped him with damning clarity. There were not sufficient minds in existence to retain the material world in its mundane form. Some other power from another dimension was fighting to supersede man's control Abruptly Mr. Chambers closed the book, shoved it back in the case faded into nothing. He shouted, hoping to attract attention. But his voice frightened With a wild cry, Mr. Chambers turned and ran. Back down the that Mr. Chambers felt the eyes peering at him. Mr. Chambers pushed open the door of his house. But he did not wood. The flames leaped merrily, dancing in the chimney's throat. Without removing his hat and coat, he sank exhausted in his favorite chair, closed his eyes then opened them again. Everything in its accustomed place: the clock, the lamp, the elephant ash tray, the marine print on the wall. Everything was as it should be. The clock measured the silence with its measured ticking it chimed abruptly and the vase sent But how long could he ... his brain ... maintain its existence? Mr. Chambers stared at the marine print and for a moment a little couldn't take this away. The rest of the world might dissolve because there was insufficient power of thought to retain its outward form. Wheeling, he stared across the room. Was it his imagination, or Could it be that he was going mad? He had heard whispers when he But he knew he wasn't mad. He knew that he perhaps was the sanest

<question>:
Why did Mr. Chambers think that man might be losing control over physical reality?

<options>:
A It was an inevitable function of time passing
B The nuclear experiments of the time were tearing apart the threads of reality
C The loss of life from war and plague left too few of minds to retain control
D The constant bickering left a lack of harmony

<answer>:

C