[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: "Confidence" is probably one of the most noticeable traits in the Americans. They show confidence in the way they talk, the way they smile, the way they dress and the way they walk. Living and competing with all these confident American students, I find it extremely important to be confident as an international student and instructor. As a student, being confident means you should never hesitate to raise your hand whenever a question or a point comes to your mind. Don't mind if it sounds simple or silly. Otherwise you will never get a chance to speak in class at all. What's worse, the professors may think you are not prepared for the discussion or you do not have your own opinion on the issue--this is the last comment any graduate would like to receive. Being confident for me as a foreign instructor means calmly asking the student to repeat what he or she has said if I did not get it. Pretending to understand what you actually did not may just bring yourself embarrassment or even disgrace. But the time I most need to be confident is when my students come to my office and bargain about the grades I have given for their speeches. (The course I'm teaching here is Public speaking). Modesty is a trait highly valued in China, but it won't be of much help here if you want to survive and succeed in a good American graduate program. Options: A American students are ready to accept the grades from the teacher. B The writer teaches in Europe for a living. C Students are encouraged to present simple questions. D One's ignorance will give away in time. Answer: D One's ignorance will give away in time. Question:
****
[A]: What can we infer from the passage?

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: Some weight-loss camps, which are rare in China just a few years ago, have sprouted in Beijing, Qingdao, Shenzhen, and other cities. Today about 15 percent of adults, or 200 million Chinese, are reportedly overweight. Of these, 90 million--about 7 percent--are obese . Experts say the obesity epidemic is spreading to children, though more slowly than in adults. The trend, they say, will have a huge impact on the health of China's citizens and economy. "We're seeing a very large proportion of children and adolescents who are quite heavy and aren't moving much," said Barry Popkin, a nutrition professor. Popkin carries out an ongoing health-and-nutrition survey of 16,000 households in China. He says more kids today are overeating and putting on weight "quite quickly". In just ten years China's childhood obesity rate has doubled, with the greatest gains coming in urban areas. "In big cities it's a big problem." Some experts blame the extra fat on a range of factors, many of them tied to China's rapidly changing economy and culture. The diets of Chinese adults and children are far higher in calorie-laden meats, fish, eggs, dairy products, fats, and sugars than ever before. In addition, kids--especially city dwellers--are more sedentary today and spend more time indoors in front of homework, television, computer games, and the Internet. Shuwen Ng, a health economist, says that kids in China now have pocket money, and they spend a portion of it on junk food. Ng adds that advertising and peer groups influence kids' food choices. Certain foods, such as new candies or fast food, have attractive features. China's childhood obesity rate still lags that of the United States, where some 15 percent of kids are said to be obese. But the long-term effects are equally serious. Options: A weight-loss camps was very popular in China six years ago B about 290 million Chinese are overweight in China in all C in China childhood obesity rate in rural areas is lower than that in major cities D America's childhood obesity rate is lower than China's Answer: C in China childhood obesity rate in rural areas is lower than that in major cities Question:
++++++++++
output: According to the passage we know _ .

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Teen models are not difficult to find. An online agency features both models young as well as older. Those who are looking for child models to show off their products and make them look better can find what they are looking for by hiring children models from these online modeling agencies. This is less expensive than trying to go through large modeling agencies that often cost thousands of dollars for the client . Many of those who are selling children's products and have websites for parents and children are looking for teen models. As a result, there is more of a need for young models to participate in the field of modeling. The best way for clients to hire models that will not end up costing them a fortune is to use an online modeling site. An online modeling site will have portfolios of models young as well as old. Someone who is looking for teen models can find a variety of different children when they take a look at these sites. Online teen models usually work for less money than offline models, although they are still paid well enough to make it worth their while to model. Clients who are looking for young models can go on an online modeling agency to look for portfolios of the teens that they will want to use in their advertising campaigns. Parents or guardians must agree to the modeling offers and the agency will act as a go-between for both the teen models as well as the clients who are looking for young models. Clients can look through portfolios for the young models and get the ones that are right for what they are looking for to advertise for them. It is now affordable for anyone to hire teen models when using an online modeling agency site. Parents of young models can also use these sites to get their teens a chance to get a head start in the world of modeling. Options: A They can help the clients to train teen models in a short time. B They can offer teen models that cost clients less money. C They can make the products look much better. D They can advertise for the clients and cost them less money. Answer: B They can offer teen models that cost clients less money. Question:

A:
What is the main advantage of online modeling agencies?