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: Do your parents smoke? Where do they smoke - outside, at work or at home when you are around? According to a survey published in the journal Academic Pediatrics, an alarming number of US parents are still risking their children's lives by smoking in front of them. Half of all children aged 6 to 19, even those with asthma , have been exposed to second-hand smoke in the country, reported Reuters. "It's well known that smoking kills, but many smokers still don't realize the damage their smoke causes to those around them," Dame Sally, Chief Medical Officer for England, was quoted by the Independent as saying. Tobacco smoke contains more than 7,000 chemicals, hundreds of which are poisonous. About 70 of them can cause cancer, not to mention other diseases, according to the US Centers for Disease Control and Prevention. What's most scary is that there is no safe level of contact with second-hand smoke---even "low-level" exposure can be harmful to one's health. And "low-level" means when a parent or family member smokes in another room or even outside. While second-hand smoke can be harmful to people of all ages, children face a greater risk than adults: they have smaller lungs; they breathe more quickly; and they have less developed immune systems. Also, young children have little control over their surroundings. Babies can't move to another room because the air is smoky. They depend on the adults in their lives to make sure that their environments are safe. Recent years have seen second-hand smoke exposure drop---but for adults rather than kids, because policies have been started around the world to ban smoking in public places such as offices, bars and restaurants. However, "Children tend to be exposed to second-hand smoke in homes and cars, and these places are not included in most laws and policies," Amy Ferketich, a researcher at The Ohio State University, US, told Reuters. So what can we do to limit children's exposure to second-hand smoke? Parents should stop smoking for good. But if they can't, they should never smoke---or let others smoke---around their children.
Question: Which of the following is TRUE according to the article?
Options: (A) Half of the children ages 9 to 18 in the US have parents who smoked at home. (B) Most smokers in the US don't care about the effects that smoking can have on those around them. (C) Dame Sally believes many parents who smoke in front of their kids have no idea of the damage that they are doing. (D) Hundreds of chemicals contained in tobacco can cause cancer.
[A]: C

[Q]: Article: "A very disruptive six-year-old child kicked my legs and clawed at my hand," said one teacher. " I broke up a fight and was kicked between my legs," said another. Many people have heard stories like this. But the situation is more worrying still and it involves parents. Every child, regardless of the circumstances into which they are born, has the right to achieve their potential, regardless of their parents' wealth and class. And we recognize that, as a nation, it is a long way to achieve this goal. But with rights come responsibilities and what worries people is that we are in danger of ignoring the latter. Far too many children are behaving badly at school, even to the point of being violent to staff. This is terrible enough, but it is hard to be surprised since many children are just mirroring the behaviour of their parents. My members tell me that parents also come into school often and threaten staff and some staff have been attacked by a pupil's parents. One father encouraged his child to start a fight on the playground before school started. A primary teacher reported that a parent shouted at him. We need to have a serious and sensible debate about the roles and responsibilities of parents and the support that they can reasonably expect of schools and teachers. Children will not learn how to behave as social beings if they are stuck in front of the TV for hours every day. They need their parents to show an interest in them and to spend time with them, helping them to play with their peers and to learn the rules of social behavior. Children are now arriving at school socially undeveloped, increasingly unable to dress themselves, unable to use the toilet properly, unable to hold a knife and fork and unused to eating at a table, Mary Bousted, general secretary of the Association of Teachers and Lecturers, writes in today's Observer. Instead of taking responsibility themselves, too many parents expect teachers to control their children's behaviour and wellbeing, she adds. Bousted says one mother blamed staff when she discovered that her 16-year-old son was smoking. We are in danger of becoming a nation of _ . The bedroom, once a place to sleep, has become the living space for the young. Spending hours in front of computer screens, on social networking sites or being immersed in computer games, children and young people spend little time with their parents. Parents are unable to monitor just what their children are watching. Schools cannot right the wrongs of society and teachers cannot become substitute parents. Both parties need to work together. Parents must be helped and given confidence to take back control. They are responsible for setting boundaries for their children's behaviour and sticking to those boundaries. They are responsible for setting a good example to their children and for devoting that most precious of resources -- time -- so that children come to school ready and willing to learn.
Question: In the opinion of the writer, what problem do people ignore?
Options: (A) The violence in the school (B) The study pressure of students. (C) The responsibilities of the students (D) The right to achieve students' potential.
[A]: C

[Q]: Article: "Eat local." It's one way to reduce human effect on the planet.Eating local means to try to buy and consume foods that are grown in places close to home.However, most of the food sold at supermarkets is not locally grown or produced.Trucks and planes deliver these foods from hundreds or thousands of miles away.During the transportation, greenhouse gases are produced, causing global warming.So the shorter the distance your foods must travel, the less the harm is done to the environment. But how do you get local food if you live in a large city, hundreds of miles away from farms?Environmental health scientist Dickson Despommier and his students came up with the idea of a "vertical farm". A vertical farm is a glass-walled structure that could be built as tall as a skyscraper.Since the garden is built upwards, rather than outwards, it requires much less space than an ordinary farm.The world is quickly running out of room for ordinary farming.Vertical farms could be a key to this situation.Despommier imagines a 30-story building with a greenhouse on every floor.The walls of the building would be clear, to allow crops to get as much sunlight as possible.Depending on a city's water resources, Despommier thinks hydroponic farming is another method for the vertical farm which needs no soil to grow plants. Despommier says the hydroponic greenhouses would use a system that would use a city's waste water and fill it with nutrition to make the crops grow.If this method works, it would provide food to a city and save millions of tons of water. The idea of a vertical farm has attracted the attention of government officials around the world.Scott Stringer, a government official from New York City, thinks the city is suitable for the vertical farming."Obviously we don't have much land left for us," Stringer said, "But the sky is the limit in Manhattan." Despommier admits that there is still a lot of work to do to make vertical farms a reality."But I think vertical farming is an idea that can work in a big way." he says.
Question: Why are people advised to eat local?
Options: (A) Because it means convenience to people. (B) Because it can help people save a lot of money. (C) Because local food has more nutrition. (D) Because it is environmentally friendly.
[A]:
D