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

<passage>:
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 was in doubt. The large hall was crammed with energetic dark-suited FIDE, WBM, USCF, USSF, USSR and UNESCO. Sandra felt fairly sure about Sandra as a particularly maddening circumstance. Overheard scraps of conversation in reasonably intelligible English were not particularly helpful. Samples: "They say the Machine has been programmed to play nothing but pure 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 Space Mirror "You're durn tootin' she would!" Sandra replied in a rush, and then a pearl-gray suit of almost exactly the same shade as Sandra's—a "That'd go fine." Sandra leaned back. "Confidentially, Doc, I was He nodded. "You are not the first to be shocked and horrified by chess," he assured her. "It is a curse of the intellect. It is a game for lunatics—or else it creates them. But what brings a sane and beautiful young lady to this 64-square madhouse?" Sandra briefly told him her story and her predicament. By the time they "You have one great advantage," he told her. "You know nothing whatsoever of chess—so you will be able to write about it understandably for your readers." He swallowed half his demitasse and smacked his lips. "As for the Machine—you "Yes, Doc, but...." Sandra found difficulty in phrasing the question. "If you had," he said, "a billion computers all as fast as the Machine, it would take them all the time there ever will be in the universe just to play through all the possible games of chess, not to mention the time needed to classify those games into branching families of wins for 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 likely lines of play for about eight moves ahead—that is, four moves each for White and Black—and then decide which is the best move on the genius, but who never makes a mistake. You see, you are finding human interest already, even in the Machine." Sandra nodded. "Does a human chess player—a grandmaster, I mean—ever look eight moves ahead in a game?" "Most assuredly he does! In crucial situations, say where there's a is probably programmed to recognize such situations and do something of the same sort, though we can't be sure from the information World Business Machines has released. But in most chess positions the possibilities are so very nearly unlimited that even a grandmaster can only look a very few moves ahead and must rely on his judgment and experience and artistry. The equivalent of those in the Machine is the directions fed into it before it plays a game." "You mean the programming?" "Indeed yes! The programming is the crux of the problem of the chess-playing computer. The first practical model, reported by Bernstein and Roberts of IBM in 1958 and which looked four moves ahead, was programmed so that it had a greedy worried tendency to grab Sandra's gaze traveled beyond the balustrade. Now that she could look Sandra looked with quickening interest at the console of the Machine—a Sandra tried to think of a being who always checked everything, but will defeat the Machine by the living force of my human personality! Already I have offered to play it an informal game blindfold—I, who true grandmaster would dare ignore. Again they refuse me. I predict that the Machine will play like a great oaf—at least against me While Sandra arranged for an interview with Jandorf after the day's wine-and-seltzer. Or did he? One tip I have for you: don't call a chess master Mister, call him Master. They all eat it up." "Gee, Doc, I don't know how to thank you for everything. I hope I That's a minor variety of chess where each player gets only ten seconds to make a move. Which I don't suppose would give the Machine time to look three moves ahead. Chess players would say that the Machine has a very slow sight of the board. This tournament is being played at the usual international rate of 15 moves an hour, and—" "Is that why they've got all those crazy clocks?" Sandra interrupted. "Oh, yes. Chess clocks measure the time each player takes in making his moves. When a player makes a move he presses a button that shuts his clock off and turns his opponent's on. If a player uses too much time, The Machine, USA (programmed by Simon Great) Maxim Serek, USSR "Willie!" Doc said with some asperity. "Miss Grayling is a journalist. Sandra pointed out. greatest players here. Otherwise half of them would be holding off in the best temperamental-artist style. For chess players the prize money is fabulous—$35,000, with $15,000 for first place, and all expenses paid for all players. There's never been anything like it. who have held that honor—Jal and Vanderhoef the director, way back." "Will whoever wins this tournament become champion?" "Oh no. That's decided by two-player matches—a very long business—after elimination tournaments between leading contenders. This tournament is a round robin: each player plays one game with every other player. That means nine rounds." Sandra said, consulting her program. "Four out of ten have USSR after in this tournament! He must have pulled all sorts of strings. Told them that his lifelong services to chess had won him the honor and that they had to have a member of the so-called Old Guard. Maybe he even got down "And Grabo?" Sandra pressed, suppressing a smile at the intensity of him as its first opponent." He would not amplify his statement. Sandra studied the Scoreboard again. "This Simon Great who's down as programming the Machine. He's a famous physicist, I suppose?" "By no means. That was the trouble with some of the early chess-playing machines—they were programmed by scientists. No, Simon Great is a psychologist who at one time was a leading contender for the world's chess championship. I think WBM was surprisingly shrewd to pick him for the programming job. Let me tell you—No, better yet—" Doc spoke his piece for Sandra. "That makes it very tough on you," Sandra put in. "The Machine isn't grandmasters, including all four Russians, were seated at their tables. Press and company cameras were flashing. The four smaller wallboards lit up with the pieces in the opening position—white for White and red style was often described as being machinelike...." For a moment Doc's eyes became thoughtful. Then he smiled again. "But no, the idea is impossible. Vanderhoef as Tournament Director has played two or three games with the Machine to assure himself that it operates legitimately and has grandmaster skill." But about your idea, Miss Grayling—did you ever read about Maelzel's famous chess-playing automaton of the 19th Century? That one too was supposed to work by machinery (cogs and gears, not electricity) but actually it had a man hidden inside it—your Edgar Poe exposed the 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 umpteenth time in her career Sandra shied away from the guilty thought

<question>:
What is Sandra reporting on?

<options>:
A A chess tournament where the old master, Krakatower, will be present.
B A chess-playing machine that is able to beat humans.
C A chess tournament where many chess masters will be present.
D A chess tournament where for the very first time a machine will be taught to play.

<answer>:

B