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

<passage>:
, she thought. He rapidly mounted the stairs and halted at the top to look around searchingly. His gaze lighted on their table, his eyebrows went up, and he made a beeline for Doc. Sandra wondered if she should warn him that he was about to be shushed. young women, Sandra Lea Grayling cursed the day she had persuaded the that there would be all sorts of human interest stories to be picked up at the first international grandmaster chess tournament in which an electronic computing machine was entered. Not that there weren't enough humans around, it was the interest that Sandra as a particularly maddening circumstance. Her last assignment had been to interview the pilot pair riding the first American manned circum-lunar satellite—and the five alternate pairs who hadn't made the flight. This tournament hall seemed to Sandra Circum-Terra?" "Not worth the trouble. The play was feeble. Barely Expert Rating." Sandra's chief difficulty was that she knew absolutely nothing about the game of chess—a point that she had slid over in conferring with the powers at the "You're durn tootin' she would!" Sandra replied in a rush, and then making a silvery nap. His pince-nez had quite thick lenses. But in sharp contrast to the somberly clad men around them, he was wearing a pearl-gray suit of almost exactly the same shade as Sandra's—a circumstance that created for her the illusion that they were fellow conspirators. Sandra briefly told him her story and her predicament. By the time they were served, Doc had absorbed the one and assessed the other. "You have one great advantage," he told her. "You know nothing "Yes, Doc, but...." Sandra found difficulty in phrasing the question. "Wait." He lifted a finger. "I think I know what you're going to ask. You want to know why, if the Machine works at all, it doesn't work perfectly, so that it always wins and there is no contest. Right?" Sandra grinned and nodded. Doc's ability to interpret her mind was as comforting as the bubbly, mildly astringent mixture she was sipping. White, wins for Black and draws, and the additional time required to trace out chains of key-moves leading always to wins. So the Machine can't play chess like God. What the Machine can do is examine all the each for White and Black—and then decide which is the best move on the basis of capturing enemy pieces, working toward checkmate, establishing a powerful central position and so on." "That sounds like the way a man would play a game," Sandra observed. "Look ahead a little way and try to make a plan. You know, like getting interest already, even in the Machine." Sandra nodded. "Does a human chess player—a grandmaster, I mean—ever "You mean the programming?" "Indeed yes! The programming is the crux of the problem of the "A million times as fast as the first machine, you say, Doc? And yet it only sees twice as many moves ahead?" Sandra objected. "There is a geometrical progression involved there," he told her by blunders they could have avoided by looking only one or two moves ahead. The Machine will make no such oversights. Once again, you see, you have the human factor, in this case working for the Machine." gray-flecked hair had halted abruptly by their table. He bent over Doc and began to whisper explosively in a guttural foreign tongue. Sandra's gaze traveled beyond the balustrade. Now that she could look four—the one above the Machine. Sandra looked with quickening interest at the console of the Machine—a Sandra tried to think of a being who always checked everything, but only within limits beyond which his thoughts never ventured, and who never made a mistake.... have a message for her readers." "Oh yes," Sandra assured him, "but there are some other questions I very much want to ask you, Mr. Jandorf." While Sandra arranged for an interview with Jandorf after the day's playing session, Doc reordered his coffee. "One expects it of Jandorf," he explained to Sandra with a philosophic ex- , though. I was swindled, Savvy. I was robbed." "Willie!" Doc said with some asperity. "Miss Grayling is a journalist. She would like to have a statement from you as to how you will play against the Machine." hotfoot, Savvy? The money WBM's putting up is okay, though. That first prize will just fit the big hole in my bank account." "I know you haven't the time now, Master Angler," Sandra said rapidly, "but if after the playing session you could grant me—" "Sorry, babe," Angler broke in with a wave of dismissal. "I'm dated up "Correct. Their advertising department is interested in the prestige. They want to score a point over their great rival." "But if the Machine plays badly it will be a black eye for them," Sandra pointed out. Four men were crossing the center of the hall, which was clearing, toward the tables at the other end. Doubtless they just happened to be going two by two in close formation, but it gave Sandra the feeling of business—after elimination tournaments between leading contenders. This tournament is a round robin: each player plays one game with every Sandra asked, "What about Grabo and Krakatower?" Doc gave a short scornful laugh. "Krakatower! Don't pay any attention to "And Grabo?" Sandra pressed, suppressing a smile at the intensity of Doc's animosity. Doc's eyes grew thoughtful. "About Bela Grabo (why are three out of He would not amplify his statement. Sandra studied the Scoreboard again. The newcomer was of middle height, compact of figure and feature, with graying hair cut short and combed sharply back. Doc spoke his piece for Sandra. Simon Great smiled thinly. "Sorry," he said, "But I am making no predictions and we are giving out no advance information on the "You know, Doc," Sandra said, "I'm a dog to suggest this, but what if this whole thing were a big fake? What if Simon Great were really playing the Machine's moves? There would surely be some way for his games with the Machine to assure himself that it operates legitimately and has grandmaster skill." "Did the Machine beat him?" Sandra asked. But about your idea, Miss Grayling—did you ever read about Maelzel's fraud in a famous article. In my story I think the chess robot will break down while it is being demonstrated to a millionaire purchaser and the young inventor will have to win its game for it to cover up imagine...." While Doc chattered happily on about chess-playing robots and chess stories, Sandra found herself thinking about him. A writer of some sort evidently and a terrific chess buff. Perhaps he was an actual medical doctor. She'd read something about two or three coming over with the guy, whoever he was. An hour ago she'd been sure she was going to muff this assignment completely and now she had it laid out cold. For the umpteenth time in her career Sandra shied away from the guilty thought that she wasn't a writer at all or even a reporter, she just used dime-a-dozen female attractiveness to rope a susceptible man (young, old, American, Russian) and pick his brain....

<question>:
What is the significance of Sandra persuading her paper into letting her write human interest stories? How does this affect the text’s composition?

<options>:
A The human interest stories—i.e., Sandra’s interviews—provide the story’s central irony. The fact that humans cannot defeat the machine shows that the real interest is not human, but robotic.
B The human interest stories provide a structure for the story to sit on. As she watches each player challenge the machine, it becomes more and more apparent that human personality cannot win.
C -The human interest stories provide a structure for the story to sit on. As Doc introduces her to each chess player, their backstories help to unpack the significance of the chess tournament.
D The human interest stories—i.e., Sandra’s interviews—provide a red herring for the story’s central goal, which is to hide the fact of Dr. Krakatower’s ability to beat the WBM machine.

<answer>:

C