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.

[EX Q]: Article: Shoppers who have cut back on purchases in the worrying U.S. economy are likely to continue their conservative shopping habits even if the economy improves, according to a new study. That signals continued bad news for retailers , who have been struggling to respond to a great cutback in spending as consumers have opened their wallets only for basic items, while cutting back on unimportant purchases. The report, which estimates retail sales growth to be flat this year, found that three-quarters of respondents to a monthly survey of 4,000 consumers said they had shifted their shopping behaviors because of the economy. Most said they were making do with less or going without some favorite items. "The habits learned during this economic crisis have the potential to permanently change the mind-set of consumers," the report said. "The vast majority of shoppers who are changing their near-term shopping behavior say they plan to continue them as the economy improves." To ease the consumer discomfort, smart retailers will focus on downsizing, the report said, as adding stores to an already crowded retail landscape is out of fashion. It came up with smaller initiatives to build shopping buzz, such as limited editions of products or having existing stores target local markets. The report also forecast that retailers will increasingly focus on private brands to attract cost-conscious shoppers, while adding complementary categories of goods to their stores to make one-stop shops for consumers. While warehouse clubs and super centers are expected to fare the best in the weak environment in 2009, discount department stores and supermarkets will be the weakest, the report warned. Sales of clothes, though expected to rebound in 2010, will be the hardest hit and slowest to recover.
Question: The current shopping behavior in the US is becoming _ .
Options: (A) arbitrary (B) protective (C) conservative (D) aggressive
[EX A]: C

[EX Q]: Article: Dan Bebber is a senior research fellow at the University of Exeter in Britain. He says research has shown that wild plants and animals are moving toward Earth's North and South poles as the planet warms. Mr Bebber wanted to know if the same thing was happening with organisms that attack agricultural crops. He examined reports of first sightings of new insects and diseases around the world. The records came from CABI - the Centre for Agricultural Bioscience International. He says the group began collecting information from developing and industrialized countries years ago. Dan Bebber and his research team studied 612 different organisms - from viruses and bacteria to insects like beetles and butterflies. They found that since 1960, crop pests and diseases have been moving toward the poles at an average rate of about 3 kilometers each year. Mr Bebber says this puts the most productive farmland in the world in danger. "As new species of pests and diseases evolve and potentially the environment for them becomes more _ at higher latitudes, the pressure on the breadbaskets of the world is going to increase." Farmers face other threats. Invasive species passed through trade are also causing problems. Gene Kritsky is an Entomologist at the College of Mount St. Joseph in Ohio. He specialises in the study of insects. He says climate change may improve conditions for some invasive species. "It means that species in other parts of the world that might do well in warmer temperatures can now do well in the breadbasket of America." Another Entomologist Christian Krupke of Purdue University says the effects of these changes will depend very much on the crop, the insect and the disease. But he says the research is a warning sign that people should care about climate change and do something about it.
Question: The purpose of Dan Bebber's research was to find _ .
Options: (A) if farmland could be moved to colder places thanks to global warming (B) if diseases and insects harmful to crops were going towards colder areas (C) if organisms were moving to the north and south poles (D) if the number of crop pests was increasing
[EX A]: B

[EX Q]: Article: With my hands and knees on the floor of the airplane, I was searching for an old lady's missing hearing aid during the flight from Sydney to Los Angeles. It occurred to me that this may not be the most dignified posture for a Buddhist nun . I had seen the old lady from the seat in front of me as she walked up and down the passage with a flashlight. I asked a few times what was wrong, but she didn't answer at first --- she couldn't hear me. She was wearing a woolen coat. Judging from her accent, she came from Eastern Europe. Do you know what hearing aids cost? Thousands, especially for the new tiny hidden-in-the-ear type she described. It takes a long time for an appointment to make a new one, and many doctor visits to get the thing adjusted right. Therefore, my dignity seemed less important than finding that hearing aid. But how does one find a tiny black object in a shadowy jet cabin ? The lady wasn't even sure where or when she had lost it. At one point, a couple of flight attendants did a random search around the lady's seat; I wasn't impressed. They left suggesting that she search the seat of her previous flight! My flashlight turned up all kinds of small objects, bits of plastic, broken pieces of headphones. The old lady said that she gave up. Yet I couldn't. After we landed, as passengers streamed past us, I insisted that the lady move aside while awaiting her wheelchair. Then I got into a real down and dirty search among the dust under her seat and on the floor. Look! A little peanut-sized shiny black object caught the light of my flashlight in a floor crack near her seat. What a rush. "I found it!" With great astonishment and gratitude, the old lady responded, "I haven't the words to express my thanks!"
Question: Why did the author put her hands and knees on the floor?
Options: (A) She is a religious Buddhist nun. (B) She fell down from her seat. (C) She helped the old lady look for her hearing aid. (D) She wanted to stand out among the passengers.
[EX A]:
C