Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Your brain isn't a muscle, but you can treat it like one Many people focus on physical fitness, but few know that brain fitness is also something you can work on. In fact, you can exercise your brain as often as you do to your arms or legs-and the results can be positive and empowering. To improve your brain, you can't simply repeat the same exercises over and over. Just as lifting a two-pound weight will stop challenging you, so will repetitive exercises such as crosswords or Sudoku. Once you master easy exercises, you must move on to harder ones in order to push your brain-like your muscles-to a new level. The science behind brain training Scientists once believed that your mental abilities were fixed in adulthood. Since studies have shown just the opposite, millions of people around the world have adopted the new practice of brain training. The most popular of these brain training products is made by the San Francisco-based Lumosity. Lumosity's scientists with an experienced team of game designers have developed a fun,effective online brain training program that measures, tracks, and adapts to your progress, so you'll always be challenged. Promising studies on the effects of brain training In a 2013 Stanford study, a treatment group of 21 breast cancer survivors used 12 weeks of Lumosity training to work on processing speed, mental flexibility, and working memory tasks. On average, those who trained improved on tests of these abilities, compared to a group that did not train with Lumosity. There is even some evidence suggesting that Lumosity may be beneficial to normal, healthy adults. In a 2011 study by Lumosity and San Francisco State University researchers. 13 people who trained over 5 weeks improved working memory scores by 10%and attention scores by 20%. Brain training is designed to meet real-life needs The design of brain train ing is targeted at real-life benefits instead of improving game scores. Better attention, for example, can mean greater focus in the classroom or at an important business... Options: A Brain Training Makes a Difference B Train Your Brain like a Muscle C Lumosity, Your Best Choice D How to Train Your Brain Answer: A Brain Training Makes a Difference Question:

A: What's the best title for the passage?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Grasshoppers are having to change their song -- one of the iconic sounds of summer -- to make themselves heard above the noise of road traffic, ecologists have discovered. The study, published in the British Ecological Society's journal Functional Ecology, is the first to show that human-made noise affects natural insect populations. Animals use sound to communicate for many reasons, including marking out territory, warning of predators and finding mates, and although previous research shows birds, whales and even frogs change their calls in noisy environments, the impact of human-made noise on insects has been neglected until now. Ulrike Lampe and colleagues from the University of Bielefeld in Germany caught 188 male bow-winged grasshoppers, half from quiet locations and half from beside busy roads. The grasshoppers use their song to attract mates. The team then studied the differences in the two groups' songs in the laboratory. To encourage them to sing they exposed the males to a female grasshopper, and then recorded their courtship songs. Analysis of almost 1,000 recordings revealed grasshoppers living beside noisy roads produced different songs to those living in quieter locations. According to Lampe: "Bow-winged grasshoppers produce songs that include low and high frequency components. We found that grasshoppers from noisy habitats increase the volume of the lower-frequency part of their song, which makes sense since road noise can mask signals in this part of the frequency spectrum ." The team's findings are important because traffic noise could be upsetting the grasshopper's mating system . "Increased noise levels could affect grasshopper courtship in several ways. It could prevent females from hearing male courtship songs properly, prevent females from recognizing males of their own species, or _ females' ability to estimate how attractive a male is from his song," Lampe explains. Having discovered that human-made noise affects insect communication, the researchers now want to learn more about how... Options: A introduce how grasshoppers make noises to attract mates. B raise the awareness of protecting bow-winged grasshoppers. C inform us of a recent discovery of ecological research. D warn us that human-made noise has changed ecological system. Answer: C inform us of a recent discovery of ecological research. Question:
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The answer is:
The author wrote the article to _ .

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: This is a true story of how my car got stuck in water and how a stranger helped me during the worst rain storm. Last Sunday, the sky was grey when I woke up. The weather report said rain was coming, but I couldn't stay home just because of rain. Around 8:00 am I had a doctor's appointment. It wasn't raining then. At 9:00 I left the doctor's office to drive to work, and it was raining hard. I just had to go about 5-6 miles down one main road to get to a nearby school, where I could stay until the rain ended. Unfortunately, the road in front of the school was flooded, and my car stopped in the middle. "Who is going to save me?" I wondered. I shut off the engine and turned on my flashers . I called 911. They were not helpful. I called my husband, even though he couldn't come and help me. I was also very close to a police station. But I never saw even one police car. I decided to get out of the car, since it was still pouring. My best decision of the day had been to wear rain boots. I took my umbrella and quickly got out and ran across the street to a shelter. Before long, a tow truck happened to pass by the street. The driver kindly offered to help me. At that moment, I really needed car pulled out quickly, so I trusted the stranger. He pulled my car and drove me home. After he had dropped my car off, he also helped me check the engine. He said the engine was most likely flooded, but fortunately there was no water inside the car. Although many years have passed, I still remember that stormy day and the warm-hearted stranger clearly. Options: A Rainy. B Cloudy. C Windy. D Sunny. Answer: B Cloudy. Question:
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[A]:
How was the weather when the author got up?