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.

[Q]: Article: Why doesn't the unemployment rate ever reach zero? Economists, who generally believe that supply tends to meet demand, have long thought about this question. Even in good times, i.e. not now, there are people who can't find work. And even in bad times, i.e. now, there are job openings. With over 14 million people out of work and looking for a job, you would think every available job would be filled. But that's not the case. Not now and not ever. On Monday, the Nobel Prize committee awarded the prize for economics to the three scholars who have done the most to explain this phenomenon. Two of the winners are Americans, Peter Diamond of MIT and Dale Mortensen of Northwestern. The third winner is Christopher Pissarides, who teaches at the London School of Economics and was born on Cyprus. Like most of economics, what they have found about why the jobless and ready-employers don't find each other seems obvious. You have to find out there is job opening you are interested in. Employers need to get resumes . It takes a while for both employers and employees to make the decision that this is what they want. And these guys came up with a frame-work to study the problem of why people stay unemployed longer than they should and what can be done about it. So what would today's Nobel Prize winners do to solve the current problem of the unemployed? And does the awarding of the prize contribute to the politicians' lowering joblessness? Speaking from his north London home, Pissarides told The Associated Press the announcement came as "a complete surprise" though his work had already helped shape thinking on both sides of the Atlantic. For example, the New Deal for Young People, a British government policy aimed at getting 18-24-year-olds back on the job market after long periods of unemployment, "is very much based on our work," he said. "One of the key things we found is that it is important to make sure that people do not stay unemployed too long so they don't lose their feel for the labor force," Pissarides told reporters in London. "The ways of dealing with this need not be expensive training - it could be as simple as providing work experience."
Question: According to the writer, which is true about finding jobs?
Options: (A) It is always difficult to find a job. (B) Everyone can find a job in good times. (C) Contrary to popular belief, it is easier to find a job in bad times. (D) It is possible to find a job even in times as bad as now.
[A]: D

[Q]: Article: Every culture has a recognized point when a child becomes an adult, when rules must be followed and tests passed. In China, although teenagers can get their ID cards at 16, many only see themselves as an adult when they are 18. In the US, where everyone drives, the main step to the freedom of adult life is learning to drive. At 16, American teens take their driving test. When they have their license, they drive into the grown-up world. "Nobody wants to ride the cheese bus to school," said Eleanor Fulham, 17. She brought the pressure back to memory, especially from kids from wealthier families. "It's like you're not cool if you don't have a car," she said. According to recent research, 41% of 16 to 19-year-olds in the US own cars, up from 23% in 1985. Although, most of these cars are bought by parents, some teens get part-time jobs to help pay. Not all families can afford cars for their children. In cities with subways and limited parking, some teenagers don't want them. But in rich suburban areas without subways, and where bicycles are more for fun than transportation, it is strange for a teenager not to have a car. But police say 16-year-olds have almost three times more accidents than 18 and 19-year-olds. This has made many parents pause before letting their kids drive. Julie Sussman, of Virginia, decided that her son Chad, 15, will wait until he is 17 to apply for his learner's permit. Chad said he has accepted his parents' decision, although it has caused some teasing from his friends. "They say that I am unlucky," he said, "But I'd rather be alive than driving, and I don't really trust my friends on the road, either." In China, as more families get cars, more 18-year-olds learn to drive. Will this become a big step to becoming an adult?
Question: Which may serve as the BEST title of the article?
Options: (A) Cars Helping You to Grow-Up (B) Driving into the Grown-Up World (C) Teenagers' Driving in America (D) Recognized Point of Becoming an Adult
[A]: B

[Q]: Article: A few degrees can make a big difference when it comes to food storage.Foods can go bad if they get too warm.But for many of the world's poor, finding a good way to keep food cool is difficult.Refrigerators are costly and they need electricity. Yet spoiled food not only creates health risks but also economic losses.Farmers lose money when they have to throw away products that they cannot sell quickly. But in nineteen ninety-five a teacher in northern Nigeria named Mohammed Bah Abba found a solution.He developed the "Pot-in-Pot Preservation/Cooling System." It uses two round containers made of clay.A smaller pot is placed inside a larger one.The space between the two pots is filled with wet sand.The inner pot can be filled with fruit, vegetables or drinks.A wet cloth covers the whole cooling system. Food stored in the smaller pot is kept from spoiling through a simple evaporation process.Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving.The evaporation process creates a drop in temperature of several degrees.This cools the inner pot and helps keep food safe from harmful bacteria.Some foods can be kept fresh this way for several weeks. People throughout Nigeria began using the invention.And it became popular with farmers in other African countries.Mohammed Bah Abba personally financed the first 5,000 pot-in-pot systems for his own community and five villages nearby. In 2000, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise.This award recognizes people trying to develop projects aimed at improving human knowledge and well-being.A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history.Winners receive financial assistance to help develop and extend their projects.The award is given every two years.The most recent one was given last year.
Question: Compared with a refrigerator, the cooling System invented by Mohammed Bah Abba is _ .
Options: (A) convenient (B) economical (C) health-conscious (D) expensive
[A]:
B