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.
--------
Question: Article: Adding math talk to story time at home is a winning factor for children's math achievement, according to a new research from the University of Chicago. The study from psychologists Sian Beilock and Susan Levine shows a marked increase in math achievement among children whose families used Bedtime Math, an iPad app that delivers engaging math story problems for parents and children to solve together. Even children who used the app with their parents as little as once a week saw gains in math achievement by the end of the school year. The app's effect was especially strong for children whose parents tend to be anxious or uncomfortable with math. Previous research from this group has demonstrated the importance of adults' attitudes about math for children's math success. For example, a recent study found that math-anxious parents who help their children with math homework actually weaken their children's math achievement. The new findings demonstrate that structured, positive interactions around math at home can cut the link between parents' uneasiness about math and children's low math achievement. "Many Americans experience high levels of anxiety when they have to solve a math problem, with a majority of adults feeling at least some worries about math," said Beilock, professor in Psychology and author of Choke, a book about stress and performance. "These math-anxious parents are probably less likely to talk about math at home, which affects how competent their children are in math. Bedtime Math encourages a dialogue between parents and kids about math, and offers a way to engage in high-quality math interactions in a low-effort, high-impact way." Study participants included 587 first-grade students and their parents. Families were given an iPad installed with a version of the Bedtime Math app, with which parents and their children read stories and answer questions involving math, including topics like counting, shapes and problem-solving. A control group received a reading app that had similar stories without the math content and questions related to reading comprehension instead. Children's math achievement was assessed at the beginning and end of the school year. Parents completed a questionnaire about their nervousness with math. The more times parents and children in the math group used the app, the higher children's achievement on a math assessment at the end of the school year. Indeed, children who frequently used the math app with their parents outperformed similar students in the reading group by almost three months in math achievement at year's end.
Question: Bedtime Math is an iPad app that _ .
Options: (A) requires parents and children to answer reading comprehension questions (B) assesses children's math achievement and parents' nervousness with math (C) teaches children how to count, recognize shapes and solve practical problems (D) encourages children together with their parents to solve math story problems

Answer: D

Question: Article: Roughly speaking, teachers in traditional education may feel that students are too young to know much about the world, and have to be told what to do most of the time. By contrast, open education offers teachers quite different feelings. Students are expected to be responsible for their own education--to discover subjects by themselves instead of being made to study them. This way of teaching allows the students to grow independently and to develop their own interests in many subjects. Some students who do badly in a traditional classroom will be happier in an open classroom and enjoy learning. They will not have to worry about grades or rules at all. However, many students won't do well in an open classroom. For these students, they will do little in school if there are too few rules. They will not make good use of open education, which is so different from traditional class, because they may have a problem getting used to making so many choices on their own. For them it is important to have some rules to direct them. They may worry about the rules even when there are no rules. In addition to that, some traditional teachers do not believe in open education and do not like it either. Since both of some good points and bad points of the open education have been explained clearly, you may have your own opinion on the issue. Personally, I think that the concept of open education is good only in theory. In actual fact, it may not work very well in a real class or school. I believe, most students, but of course not all students, need some structure in their classes. They may want and need to have rules. In some cases, they must be made to study some subjects. Many students are pleased to find subjects they have to study interesting. They would not study those subjects if they did not have to.
Question: Open education allows the students to _ .
Options: (A) grow as the educated (B) be responsible for their life (C) discover subjects outside class (D) develop their own interests

Answer: D

Question: Article: Israel has passed a law banning the use of underweight models in advertising. Known as the "Photoshop Law", it also requires that agencies tell their audience if they've digitally changed pictures to make models look thinner. The new law forbids the use of models with a body mass index of 18.5 or less, a standard based on internationally accepted measures. The figure matches the set of fixed limits by the U. S. Department of Health. The law doesn't set a money amount that can be gained in court from such a _ . Lawmakers realize that it may be a long and difficult process to prove in court that a company broke the new law, but they feel that simply having the law in place will accomplish what they want; stopping advertising companies from continuing to influence Israelis with images of unhealthy-looking models as the gold standard of beauty. Some modeling agencies in Israel aren't happy. They say that the indexes on which the law is based are arbitrary and are not suitable for every model. Many models who are totally healthy girls might be disqualified because of the law. Some models are naturally thin and unable to gain weight and the new law would unfairly prevent them from finding jobs. However, plus-size American supermodel Emme told CNN that she thinks the law will cause other countries to make similar measures against showing underweight models. "I think this is fantastic because so many young women and men are suffering to look in a way that is unrealistic and unhealthy," she said.
Question: What is "Photoshop Law" about?
Options: (A) Banning the use of underweight models. (B) Banning underweight models in advertising. (C) Banning changing pictures digitally. (D) Banning models in advertising.

Answer:
B