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In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.
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Article: We have only one earth.In a world with limited land, water and other natural resources, the harm from the traditional business model is on the rise.Actually, the past decades has seen more and more forests disappearing and globe becoming increasingly warm.People now realize that this unhealthy situation must be changed, and that we must be able to develop in sustainable ways.That means growth with low carbon or development of sustainable products.In other words, we should keep the earth healthy while using its supply of natural resources. Today, sustainable development is a proper trend in many countries.According to a recent study, the global market for low-carbon energy will become three times bigger over the next decades.China, for example, has set its mind on leading that market, hoping to seize chances in the new round of the global energy revolution.It is how trying hard to make full use of wind and solar energy, and is spending a huge amount of money making electric cars and high-speed trains.In addition, we are also seeing great growth in the global markets for sustainable products such as palm oil , which is produced without cutting down valuable rainforest.In recent years the markets for sustainable products have grown by more than 50%. Governments can fully develop the potential of these new markets.First, they can set high targets for reducing carbon emissions and targets for saving and reusing energy.Besides, stronger arrangement of public resources like forests can also help to speed up the development.Finally, governments can avoid the huge expenses that are taking us in the wrong direction, and redirecting some of those expenses can accelerate the change from traditional model to a sustainable one. The major challenge of this century is to find ways to meet the needs of growing population within the limits of this single planet.That is no small task, but it offers new chances for sustainable product industries.
Question: The traditional business model is harmful because of all the following EXCEPT that _ .
Options: (A) It makes the world warmer (B) it consumes natural resources (C) it brings severe damage to forests (D) it makes growth hard to continue
answer:
B

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Article: Wal-Mart is not just the world's largest retailer . It's the world's largest company, which sells in three months what number-two retailer Home Depot sells in a year. Wal-Mart exercises its power for just one purpose: to bring the lowest possible prices to its customers. At Wal-Mart, that goal is never reached. The retailer has a clear policy for suppliers: On basic products that don't change, the price Wal-Mart will pay, and will charge shoppers, must drop year after year. But what almost no one outside the world of Wal-Mart and none of its 21,000 suppliers know is the high cost of those low prices. To survive in the face of its pricing demands, makers of everything from bikes to jeans have had to close US plants in favor of obtaining products from abroad. Indeed, the real story of Wal-Mart, the story that never gets told, is the story of the pressure the biggest retailer constantly applies to its suppliers in the name of bringing us "every day low prices". The giant retailer' s low prices often come with a high cost. Wal-Mart' s pressure can crush the companies it does business with and force them to send jobs overseas. Are we shopping our way straight to the unemployment line? Of course, US companies have been moving jobs offshore for decades, long before Wal-Mart was a retailing power. But there is no question that the chain is helping accelerate the loss of American jobs to low-wage countries such as Thailand. People ask, "How can it be bad for things to come into the US cheaply?" Sure, it's great to have bargains. But you can' t buy anything if you' re not employed. There is no question that Wal-Mart's drive to squeeze out cost has benefited consumers. By now, it is accepted wisdom that Wal-Mart makes the companies it does business with more efficient and focused. Wal-Mart itself is known for continuous improvement in its ability to handle, move, and track goods. It is legendary for forcing its suppliers to redesign everything from their packaging to their computer systems. It is also legendary for quite straightforwardly telling them what it will pay for their goods.
Question: How do suppliers meet the requirements of Wal-Mart?
Options: (A) To sell even more goods in three months. (B) To cut down the employment rate sharply. (C) To charge shoppers at a much higher price. (D) To run the business in a well-organized way.
answer:
D

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Article: Frederic Mishkin, who's been a professor at Columbia Business School for almost 30 years, is good at solving problems and expressing ideas. Whether he's standing in front of a lecture hall or engaged in a casual conversation, his hands are always waving and pointing. When he was in graduate school, one of his professors was so annoyed by this constant gesturing that he made the young economist sit on his hands whenever he visited the professor's office. It turns out, however, that Mishkin's professor had it exactly wrong. Gesture doesn't prevent but promotes clear thought and speech. Research demonstrates that the movements we make with our hands when we talk form a kind of second language, adding information that's absent from our words. It's learning's secret code: Gesture reveals what we know. It reveals what we don't know. What's more, the agreement (or lack of agreement) between what our voices say and how our hands move offers a clue to our readiness to learn. Many of the studies establishing the importance of gesture to learning have been conducted by Susan Goldin-Meadow, a professor of psychology at the University of Chicago. "We change our minds by moving our hands," writes Goldin-Meadow in a review of this work. Particularly significant are what she calls "mismatches" between oral expression and physical gestures. A student might say that a heavier ball falls faster than a light one, for example, but make a gesture indicating that they fall at the same rate, which is correct. Such differences indicate that we're moving from one level of understanding to another. The thoughts expressed by hand motions are often our newest and most advanced ideas about the problem we're working on; we can't yet absorb these concepts into language, but we can capture them in movement. Goldin-Meadow's more recent work strews not only that gesture shows our readiness to learn, but that it actually helps to bring learning about. It does so in two ways. First, it elicits helpful behavior from others around us. Goldin-Meadow has found that adults respond to children's speech-gesture mismatches by adjusting their way of instruction. Parents and teachers apparently receive the signal that children are ready to learn, and they act on it by offering a greater variety of problem-solving techniques. The act of gesturing itself also seems to quicken learning, bringing new knowledge into consciousness and aiding the understanding of new concepts. A 2007 study by Susan Wagner Cook, an assistant professor of psychology at the University of Iowa, reported that third-graders who were asked to gesture while learning algebra were nearly three times more likely to remember what they'd learned than classmates who did not gesture.
Question: How is gesturing important in acquiring knowledge?
Options: (A) It draws tasteful responses from others and increases learning speed. (B) It promotes second language learning and quickens thinking. (C) It provides significant clues for solving academic problems. (D) It reduces students' reliance on teachers' instruction.
answer:
A