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

<passage>:
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 Silently, so as not to shock anyone with illusions about well dressed young women, Sandra Lea Grayling cursed the day she had persuaded the 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 men of whom a disproportionately large number were bald, wore glasses, were faintly untidy and indefinably shabby, had Slavic or Scandinavian features, and talked foreign languages. They yakked interminably. The only ones who didn't were scurrying individuals with the eager-zombie look of officials. ritual and still smaller folding sets in which the pieces were the tiny FIDE, WBM, USCF, USSF, USSR and UNESCO. Sandra felt fairly sure about The many clocks, bedside table size, would have struck a familiar note except that they had little red flags and wheels sprinkled over their faces and they were all in pairs, two clocks to a case. That Siamese-twin clocks should be essential to a chess tournament struck Sandra as a particularly maddening circumstance. pairs who hadn't made the flight. This tournament hall seemed to Sandra 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 "You're durn tootin' she would!" Sandra replied in a rush, and then It was a small sprightly elderly man who looked like a somewhat 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. Meanwhile the happy little man had edged them into the first of a small cluster of tables, where a dark-suited jabbering trio was just rising. He snapped his fingers and hissed through his teeth. A white-aproned waiter materialized. "That'd go fine." Sandra leaned back. "Confidentially, Doc, I was beautiful young lady to this 64-square madhouse?" Sandra briefly told him her story and her predicament. By the time they "Yes, Doc, but...." Sandra found difficulty in phrasing the question. Sandra grinned and nodded. Doc's ability to interpret her mind was as time needed to classify those games into branching families of wins for White, wins for Black and draws, and the additional time required to 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 out trumps in bridge or setting up a finesse." man. A rather peculiar and not exactly pleasant man. A man who always abides by sound principles, who is utterly incapable of flights of 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 is probably programmed to recognize such situations and do something of the same sort, though we can't be sure from the information World 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?" 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 at enemy pieces and to retreat its own whenever they were attacked. It only sees twice as many moves ahead?" Sandra objected. Sandra's gaze traveled beyond the balustrade. Now that she could look middle, toward the far end, were five small tables spaced rather widely out on each. To either side of the hall were tiers of temporary seats, about half of them occupied. There were at least as many more people still wandering about. corresponding tables, five large dully glassy chessboards, the White Sandra looked with quickening interest at the console of the Machine—a Sandra tried to think of a being who always checked everything, but moment the waiter arrived with a second coffee and wine-and-seltzer. Already I have offered to play it an informal game blindfold—I, who "Oh yes," Sandra assured him, "but there are some other questions I While Sandra arranged for an interview with Jandorf after the day's "One expects it of Jandorf," he explained to Sandra with a philosophic "Is that why they've got all those crazy clocks?" Sandra interrupted. it was typical Jandorf bravado to make a point of a blindfold Sandra started to hunt through her pocketbook, but just then two lists "Cripes, Doc, they all sound like they were Russians," Sandra said She would like to have a statement from you as to how you will play "I know you haven't the time now, Master Angler," Sandra said rapidly, Doc and Sandra looked at each other and smiled. "Chess masters aren't exactly humble people, are they?" she said. them, though," he said. "They really get so little recognition or recompense. This tournament is an exception. And it takes a great deal of ego to play greatly." tournament?" Sandra pointed out. her best chess players at all adequately. I think the Russian players them." Doc frowned. "True, in a sense. They must feel very sure.... Here they are now." Four men were crossing the center of the hall, which was clearing, going two by two in close formation, but it gave Sandra the feeling of "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." an awful lot of Russians in the tournament," Sandra said, consulting her program. "Four out of ten have USSR after "The proportion of Soviet to American entries in the tournament Sandra asked, "What about Grabo and Krakatower?" "And Grabo?" Sandra pressed, suppressing a smile at the intensity of He would not amplify his statement. Sandra studied the Scoreboard again. A man some four tables away waved back and a moment later came over. The newcomer was of middle height, compact of figure and feature, with Doc spoke his piece for Sandra. "That makes it very tough on you," Sandra put in. "The Machine isn't The tiers of seats were filled now and the central space almost clear. grandmasters, including all four Russians, were seated at their tables. Doc laughed happily—and so loudly that some people at the adjoining tables frowned. "Did the Machine beat him?" Sandra asked. Only his dark-circled eyes shone with unquenchable youth. A useful old 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.... She realized suddenly that the whole hall had become very quiet. them disapprovingly. All five wallboards were lit up and the changed the tiers of seats was completely clear now, except for one man hurrying across it in their direction with the rapid yet quiet, almost tip-toe walk that seemed to mark all the officials. Like morticians'

<question>:
What can you best infer about the characteristics of the people in attendance at the tournament hall that Sandra was at?

<options>:
A They are arrogant and lackadaisical.
B They are sharp-minded and determined to win.
C They are confident yet humble.
D They are astute and put together.

<answer>:

B