In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

[Q]: Article: Group buying is one of the fastest growing trends in South Africa today. Industry leaders are confident the growth potential remains strong since group buying is location-specific. Start-up costs are low and profit room remains high, so many sites continue to receive invested money despite widespread criticism and Facebook's decision to _ deal business due to privacy concerns. In the early stages of all industries, some companied fail because they cannot compete with stronger companies in difficult economic conditions. To deal with difficult conditions, an alarming number of businesses are developing group buying websites in places like China and India, so the increase of group buying in South Africa is nothing more than a natural progression into the international mainstream. The group buying concept is fairly new and consumers have accepted this concept because they can now make full use of the rich information available on the Internet. Group buying is convenient and easy so it works. Anyone can view a site, join a mailing list, subscribe to RSS or print out a coupon . The current group buying structure offered by the industry leaders works although there are still challenges to overcome. Perhaps, the future of group buying is tied to the joining together of social media and mobile devices. Mobile devices are with us wherever we go and almost everyone is using some type of social media site like Facebook or Twitter to stay informed. Using GPS and social media technology to provide real time location-specific promotions would be beneficial to every consumer looking for the best deals in town. Pause for a moment and think about it! What is better than signing on to your phone while having fun in town and you receive a real time information that your favorite shop across the street is offering a killer dial? The future of the group buying in South Africa is bright and we can expect to see more advanced approaches to this concept in the future. In addition to the technological advances consumers will see the range of promotions expand to include new products and services.
Answer: group buying is an international trend
[A]: The author sets China and India as examples to show that _ .

[Q]: Article: One of the United States' social problems is the breakdown of the two-parent family. Today, millions of American children grow up without fathers. Too often, these children lack the love and help they badly need and which they would ordinarily receive from not one but two parents. In the old days, American parents placed the needs of their children above their own. At present, however, nearly one half of all new marriages end in divorce, with often troubling results for their children. Worse, every year, thousands of teenage, unmarried Americans become mothers outside marriage, with generally terrible results for the mothers and children alike and for American society more generally. However, Chinese continue to value whole marriages. This is not to say that Chinese marriages are all perfect. They certainly are not, judging from increasing rates of divorce and extramarital affairs-but the willingness of Chinese to set aside their own needs and stay together for the sake of the children is admirable and worthy of study. Families, in whatever form they may take, are important to Americans. If one was to ask a group of Americans what is the dearest to them, the majority would say"family".And yet, so many Americans spend much more time at work, that is, beyond the formal forty-hour work week-than they do with their own families. Obviously, the USA is one of the most powerful in the world, owing in large measure to"workaholism" . It seems to me that Chinese generally find a better balance between work and family needs than many Americans do. I don't see the number of workaholics in China that I do in the United States(or American organizations in China).Instead, average Chinese usually head home right after work(in the office or field),have meals together, and spend time with their family members. What's more, Chinese try to make more time for grandparents, uncles, aunts and cousins than many Americans; in many cases, multigenerational families live together. Of course, like many facts of Chinese society, this is all changing; increasing numbers of"New Chinese"are working longer hours and spending less time with their families than ever before. Still, while Americans do value their loved ones, I think we have something to learn from the Chinese about finding the proper balance between work and family.
Answer: there is something about family for Americans to learn from China
[A]: The main point of the passage is _ .

[Q]: Article: How important is your mobile phone, better known to Americans as a cellphone? Jack said, "I use my phone all the time. I'm always on my phone." Ann said, "It's important to me because it's like my life saver." Jenny said, "I need my cellphone. I cannot live without it." So far, no studies have proven beyond question that the radio signals from cellphones cause brain cancer or other health problems. But a new study by government scientists in the United States has some people wondering what to think. The scientists have found that holding a cellphone to your ear for more than fifty minutes increases brain cell activity. Even the scientists themselves are not sure about the meaning of their findings. Dr Nora Volkow led the study. She heads the National Institute on Drug Abuse, part of the National Institutes of Health. Dr Volkow says she is not concerned that fifty minutes of cellphone exposure would harm anyone. But she says the research does show the need to study whether there are long-lasting effects of repeated exposure over several years. Her team studied forty-seven healthy volunteers between January and December of 2009. The volunteers had cellphones placed against both ears while the scientists made images of their brain activity. As part of the test, one phone was activated for fifty minutes. The other phone was off. After that, the volunteers were tested with both phones turned off. Dr Volkow says the brain scans showed increased activity in brain cells closest to the activated phone. The scans showed how the brain cells used sugar to produce energy, a normal activity. The activity was seven percent higher in areas of the brain closest to the cellphone antenna . Dr Giuseppe Esposito is a nuclear medicine expert at Georgetown University Medical Center in Washington. He says after many years of studies, better kinds of research are still needed to settle questions about cellphone safety. These studies would take years.
Answer: using cellphones has an effect on brain cells
[A]:
The results of the study tell us that _ .