In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: A growing number of Chinese are keeping their cash in their wallets this Lunar New Year as the traditional exchange of red packets of money is moving from the physical world into the digital space. The tradition of giving cash gifts of "lucky money" ("hong bao" in Chinese) goes back centuries and can be particularly profitable for the young and the unmarried. As the country increasingly adopts online business and e-commerce models, tradition is taking a back seat to convenience as more and more lucky money receivers prefer to receive their money via electronic means. A recent study conducted by Shanghai-based Avanti Rhesearch Partner showed that 58% of respondents preferred their hong bao directly deposited into their accounts. The country is becoming increasingly connected --- over 90% of 18 to 30 year olds in China own an Internet-connected smart phone, according to a Global Times survey published last year. Of course, China's Internet giants have not been slow to capitalize on this trend, with Shenzhen-based Tencent last week launching their "New Year Red Envelope" app , an add-on to its popular WeChat messaging service. The company's over 600 million WeChat users can send each other lucky money, provided both the sender and receiver have signed up to the company's in-app payment service. "I am really happy that I can use a new and fashionable way to send my holiday greetings to my family and friends, especially for people who have kids but live far away from us." said Mr. Cheng, a user of the service. The service reportedly banked 18 million RMB ($2.9 million) worth of transfers in its first 24 hours, according to a report in the Beijing Youth Daily newspaper. While Tencent's rival Alibaba also has a similar service, called Hong Bao, which launched last year, WeChat's app allows users to randomly distribute up to 200 yuan ($33) within a group of friends, adding a fun element of unpredictability to the process. Some analysts believe that linking the payments to WeChat's in-app payment service could be a game-changer, as it simplifies the process of paying for micro dealings, potentially making users more likely to make in-app purchases in the future. "The tradition of giving red packets is a symbolic gesture," said Steve Wang, Chief Economist, Reorient Group. "It's a new way to get people more comfortable dealing with money online, to expand their user base. It combines the old and the new, and is a great example of the kind of creative idea that we're seeing come out of China these days."
Answer: New Year luck money goes online.
What is the main idea of the passage?

Article: China's auto production is expected to grow by 20 percent in 2005 to 6 million vehicles , possibly passing Germany as the world's No. 3 producer. China is the world's-fastest-growing auto market as rising incomes make it possible for millions to buy their cars. Foreign automakers are investing billions of dollars in expanding production in China. Germany produced 5.5 million vehicles in 2004, the No. 3 producer behind the United States and Japan. London is quickly becoming a major cycling city after the terrorist ( ) bombings on London's subway and bus system July 7, which killed 52 people. London Mayor Ken Livingstone wants to increase cycling 80% by 2010. "Cycling is the fastest, cheapest, most healthy and environmentally friendly way to get around London, and more and more people are taking it up," Livingstone said. "The number of cyclists has doubled over the last five years, while those killed or seriously injured has fallen by 40%." Under the London Cycling Action Plan, Livingstone hopes to make London a world-class cycling city to reduce congestion and pollution. London now has 273 miles of bike roads, half built since 2000. The goal is 560 miles by 2010.
Answer: Because Chinese are getting higher incomes.
Why is China the fastest-growing auto market?

Article: A lot of grown-ups worry that spending too much time playing video games isn't good for a kid's health. Now some doctors have noticed that kids who bring their hand-held game players to the hospital seem less worried about being there. These patients also seem to experience less pain when they are concentrating on a superhero adventure or a car race. At the Johns Hopkins Children's Center in Maryland, young patients are finding hospital visits easier to deal with, thanks to a test program called the Hospital-based On-line Pediatric Environment (HOPE). Patients in HOPE have a life-threatening condition where their kidneys no longer filter wastes from their blood. To get their blood cleaned, these kids must be hooked up to dialysis machines at the hospital three times a week, for at least three hours each time. HOPE allows kids to play online sports, racing, and adventure games with each other. Eventually they will be able to connect with kids in other hospitals who are suffering from the same problem. "We want to use the power of the Internet to bring together kids who feel that they are separated by their illness, and let them know that they are not alone," said Arun Mathews, the doctor who heads the program. He loves video games himself and got the idea to connect kids all over the country. Many researchers elsewhere are testing video game programs that might help young patients. For example, nine-year-old Ben Duskin of San Francisco, who was struggling with cancer helped to design a video game where players get rid of cancer cells. That's all great news, because doctors already know that reducing pain and worry helps patients heal faster.
Answer: Playing video games seems to be beneficial to young patients' recovery.
What's the main idea of the passage?