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: Ever tried taking smart drugs to perform better in exams? They certainly work. Before last summer's exam, a few of my mates, merely out of curiosity, took a considerable amount of Modafinil, a drug normally used for narcolepsy . Guess what? While I was feeling sleepy, bored by revision, my mates were more focused. Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving. But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don't want to do anything else but revise all the time non-stop. A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects. "At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you're actually purchasing. " In my experience, Modafinil changes people's behaviour too. Over those weeks my friends became different people--in turn aggressive, cold. Even eating became "a waste of time" and so did conversation. A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they'd happily do so without considering the practice a form of cheating. I admit I was curious--but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don't say you haven't been warned!
Question: According to the author, his mates took Modafinil for the purpose of _ .
Options: (A) escaping from reality (B) getting better exam results (C) curing their narcolepsy (D) leading an active life
[A]: B

[Q]: Article: Compared to high heels , they don't look dangerous, but flip-flop wearers should think twice before slipping on a pair. The National Health Service spends PS40 million a year treating injuries caused by wearing the casual footwear. More than 200,000 people end up in hospital every year after suffering falls or developing long-term problems. Once worn only at the beach, flip-flops have become the regular summer footwear of choice for women, with two in five women owning at least one pair. But experts are warning the public of the dangers of wearing flip-flops, such as the risk of joint pains. They say flip-flops force people to change the way they walk so that when taking a walk with long steps they put pressure on the outside of their foot, rather than their heel, causing long-term damage. And there is also the risk of serious injury. Frequent complaints include twisted ankles, but some have broken their arms or wrists after falling because their flip-flops caught on uneven ground. Many also suffer aching toes as they constantly wear them. Mike, a spokesman, warned wearers of the damage done by flip-flops. He said, "They land on the outside and then roll the foot inwards putting all the pressure on the big toe." This constant rolling puts pressure on the ankle joint, causing it to weaken. The lack of support of the flip-flop also causes pain on the inside of the foot and lower leg. And if you're not used to wearing them, they can cause blisters , he added. Doctors say flip-flops cause far more damage as they are worn for longer periods of time. Emma Supple, consultant podiatrist , said, "Flip-flops are universally popular. They are easy to put on and easy to wear but women do need to be mindful that wearing on hard flat surfaces can cause considerable foot and leg problems." She encouraged women to wear suitable shoes to help recover from summertime injuries.
Question: What is the text mainly about?
Options: (A) The benefits of wearing high heels. (B) The dangers caused by wearing flip-flops. (C) The advantages and disadvantages of wearing flip-flops. (D) Some advice on how to avoid injuries caused by wearing high heels.
[A]: B

[Q]: Article: Although new laws have been passed in some American states to cut down on Distracted driving , many accidents and deaths were still related with it, especially using cell phones while driving.Recently the Obama administration is considering disabling cell phones in cars aiming to cut down cell-phone-related road deaths. Transportation Secretary Ray LaHood, the nation's anti-distracted-driving supporter, said in an interview on November 18 that federal officials are looking at technology to disable cell phones inside cars. "I think it will be done," LaHood said."I think the technology is there and I think you're going to see the technology become adaptable in automobiles to disable these cell phones- We need to do a lot more if we were going to save lives." Also on Thursday, the transportation government started a new "Faces of Distracted Driving" video campaign that features people who have been killed or lost their loved ones because of inattentive drivers.The video features heartbreaking stories of children killed, in crashes because of phoning or text messaging, and new videos are expected to be added every few weeks. A driver is four times more likely to crash while using a mobile phone.More than 5,500 people were killed last year by distracted drivers, and another 500,000 were injured.LaHood has said it is never safe to talk on a cell phone while driving, hands-free or not, because it can really cause distraction. Incidentally, a lot of people seem to agree with this viewpoint--a new research shows nearly two-thirds of Americans support a national ban on the use of cell phones while driving, even if the driver is using a hands-free device .But the research didn't ask how people feel about government-issued _ or other disabling devices.
Question: We can learn from the text that Ray LaHood _ .
Options: (A) is in charge of the invention of the technology (B) is strongly for the use of the technology in cars (C) thinks it's easy and practical to invent the technology (D) thinks it's unnecessary to use cell phone while driving
[A]:
B