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.

Input: Consider Input: Article: Sensing phantom phone vibrations is a strangely common experience. Around 80% of us have imagined a phone vibrating in our pockets when it's actually completely still. Almost 30% of us have also heard non-existent ringing. Are these signs of madness caused by digital culture? Not at all. In fact, phantom vibrations and ringing indicate a fundamental principle in psychology. Psychologists use a concept called Signal Detection Theory to guide their thinking about the problem of perceptual judgments. Working through the example of phone vibrations, we can see how this theory explains why they are a common and unavoidable part of healthy mental function. When your phone is in your pocket, the world is in one of two possible states: the phone is either ringing or not. You also have two possible states of mind: the judgment that the phone is ringing, or the judgment that it isn't. Obviously you'd like to match these states in the correct way. True vibrations should go with "it's ringing", and no vibrations should go with "it's not ringing". Signal detection theory calls these faithful matches a "hit" and a "correct rejection" But there are two other possible combinations: you could mismatch true vibrations with "it's not ringing" (a "miss"); or mismatch the absence of vibrations with "it's ringing" (a "false alarm"). This second kind of mismatch is what's going on when you imagine a phantom phone vibration. What does that mean in terms of your phone? We can assume that people like to notice when their phone is ringing, and that most people hate missing a call. This means their perceptual systems have adjusted their bias to a level that makes misses unlikely. The unavoidable cost is a raised likelihood of false alarms of phantom phone vibrations. The trade-off between false alarms and misses also explains why we all have to put up with fire alarms going off when there isn't a fire. It isn't that the alarms are badly designed, but rather that they are very sensible to smoke and heat and biased to avoid missing a real fire at all costs. The outcome is a rise in the number of false alarms. These are inconvenient, but nowhere near as inconvenient as burning to death in your bed or office. The alarms are designed to err on the side of caution.
Question: The writer tries to explain phantom phone vibrations_.
Options: (A) by analyzing some facts (B) by giving some examples (C) from the angle of biology (D) from the angle of psychology

Output: D

Input: Consider Input: 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.

Output: C

Input: Consider Input: Article: We've all heard the phrase "love is patient", but one couple in prefix = st1 /Michigan, took this phrase to a whole new level. On Monday, February 13, Willard Mason sat down to talk about his relationship with the love he lost more than 60 years ago. Good fortune and fate recently helped the couple reunite. In 1941, Willard Mason and Llah Ost, both senior 2 students, became engaged to be married and began planning their lives together. But Willard moved away to work at Willow Run Bomber Plant, where he met and fell in love with a woman named Helvi. He broke off his long distance engagement to Llah and married Helvi in 1942. Llah later found love with someone else. Both had happy marriages and raised families. Then, in 2003, Helvi died. A year later, Willard found himself back in his hometown, where by chance, he ran into Llah's brother. He informed Willard of the death of Llah's husband, and encouraged him to call her. After that first phone call, the couple began dating. Willard made the drive from his home near Houghton Lake to Llah's home in Adrian. On one such trip, he blacked out, and his car hit a tree. He was rushed to a hospital, where tests showed that he needed a new pacemaker . Willard moved closer to Adrianand asked Llah to move in with him. She gladly accepted. "We get along perfectly," Willard told AZ Central on Monday. "We've never had an argument, she's a great cook, and she takes care of me." Although both Willard and Llah are saddened by the 62 years they spent without each other, neither seem to have any regrets. Willard told AZ Central, "You don't know how our lives might have turned out if we'd gotten married in 1941, but now she has a wonderful family, and so do I."
Question: What does the writer probably mean by saying the phrase "love is patient"?
Options: (A) To win love needs a good-natured tolerance of waiting. (B) Love can make someone ill in hospital. (C) Love can also help one set a world record. (D) To win love needs a whole new level of cooking skill
Output: A