I'm taking a test and have to guess the right answer to the question after the article. Article: Scientists have discovered a gene that plays a role in violence in men ill-treated in childhood.The discovery could explain why some experience unhappy childhoods and go on to normal lives, while others turn to violence, crime of antisocial deeds. But it will also restart another argument. Terrie Moffitt and Avshalom Caspi report in Science today that one common form of a gene in the brain makes men more likely to be violent--but only if they have experienced cruelty or rejection in childhood . The researchers followed up the life histories of 442 boys born in New Zealand in 1972. Of these, 154 had been ill-treated in the first 10 years, 33 of them badly. They had either experienced sexual attack, beatings or rejection by mother or stepparents. Of the 154 children , 55 had a less active variant of a gene called MAOA, and 99 had the more active variant . The 55 boys were more than twice as likely to have been in trouble as the other ill-treated group . They made up 12% of the total, but were responsible for 44% of all crimes from among the 442 boys. Prof Moffitt thought a "violence" gene had not been discovered. Boys with the less active form who were not ill-treated during childhood lived normal lives. "It is very common in the population. One third of us have it." she said, "So the gene doesn't do much of anything, it doesn't cause any trouble in any way, unless we are also ill -treated". The gene might also show the ability to bear mental stress. The army or the police might examine the applicants to see if they have the more active form . But the discovery also raises the argument that people with the less active form of the gene could be social dangers, to be treated with medicine. "This research can easily lead people to fix social problems through medical treatment," said David King of the UK Gene Alert Group. Question: According to the passage, we can infer that_. Options: A: one fifth of the population carry the less active variant. B: boys with the less active variant will not live normal lives C: all the people agree with the idea of "violence" gene D: the less active variant and ill-treated experience contribute to violence
D

I'm taking a test and have to guess the right answer to the question after the article. 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... Question: Which is the best title for the passage? Options: A: High-quality math interactions improve performance. B: Frequent use of app can develop problem solving ability. C: Low-effort activities create good parent-child relationship. D: High-anxiety parents influence children's attitude about math.
A

I'm taking a test and have to guess the right answer to the question after the article. Article: It's well-known that meditation has many benefits, but do you know how to practice it for a beginner? Set a proper scene Find a space for meditation.It should be private and quiet.Make sure the temperature is comfortable.Sit on a cushion if the floor is uncomfortable.You may play soft music if you like. Take a moment to loosen up.Remember that the goal of meditation is to relax.Loosen your clothing, remove your shoes and have a good stretch.Do your best to ease any muscle tension that might keep you from achieving relaxation.Make an effort to relax your facial muscles. Focus on your breath Sit down in the space you've prepareD. Close your eyes and breathe.Each time you breathe in, count "one".Each time you breathe out, count "one".The idea is to strengthen being in the moment -- the last breath doesn't matter, and the next one doesn't matter; only this one matters. Feel your breath inflate your lungs and push on your diaphragm .Feel how sweet it is to _ the fresh air.As you do this, your body will gradually begin to relax and all of your attention will be centered within your minD. Return to real life Once you feel fully centered in your mind, allow yourself to gradually drift back to real life.Move your fingers and toes and slowly wake your body up.Open your eyes and remain there for a few minutes until your senses come back, and then slowly stand up. Even if you can't make it fully into your mind, you still get some benefits from it.If you want to feel better, you just need to practice.Set about 10 minutes around the same time every day and repeat this exercise. Question: The text is about _ . Options: A: steps in practicing meditation for beginners B: tips on how to breathe slowly C: the benefits of practicing meditation D: the best way to stay relaxed
A